diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.json b/descriptions/api.github.com/api.github.com.2022-11-28.json
index 69da77e886..89b1bb611e 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.json
@@ -120558,6 +120558,7 @@
         "properties": {
           "sha": {
             "type": "string",
+            "nullable": true,
             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
           },
           "filename": {
diff --git a/descriptions/api.github.com/api.github.com.2022-11-28.yaml b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
index 771e31337a..aaf4a0da2c 100644
--- a/descriptions/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions/api.github.com/api.github.com.2022-11-28.yaml
@@ -88621,6 +88621,7 @@ components:
       properties:
         sha:
           type: string
+          nullable: true
           example: bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
           type: string
diff --git a/descriptions/api.github.com/api.github.com.json b/descriptions/api.github.com/api.github.com.json
index 69da77e886..89b1bb611e 100644
--- a/descriptions/api.github.com/api.github.com.json
+++ b/descriptions/api.github.com/api.github.com.json
@@ -120558,6 +120558,7 @@
         "properties": {
           "sha": {
             "type": "string",
+            "nullable": true,
             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
           },
           "filename": {
diff --git a/descriptions/api.github.com/api.github.com.yaml b/descriptions/api.github.com/api.github.com.yaml
index 771e31337a..aaf4a0da2c 100644
--- a/descriptions/api.github.com/api.github.com.yaml
+++ b/descriptions/api.github.com/api.github.com.yaml
@@ -88621,6 +88621,7 @@ components:
       properties:
         sha:
           type: string
+          nullable: true
           example: bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
           type: string
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
index f14a62163c..31728dcdc6 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
@@ -210065,6 +210065,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -227598,6 +227599,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -262767,6 +262769,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -268482,6 +268485,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -273810,6 +273814,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -274355,6 +274360,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -274924,6 +274930,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -275015,6 +275022,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -390399,6 +390407,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -422097,6 +422106,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -422357,6 +422367,7 @@
                     "properties": {
                       "sha": {
                         "type": "string",
+                        "nullable": true,
                         "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                       },
                       "filename": {
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
index 17697ab920..af0c6e32b4 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
@@ -53273,6 +53273,7 @@ paths:
                           properties:
                             sha:
                               type: string
+                              nullable: true
                               example: bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
                               type: string
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.json b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
index f14a62163c..31728dcdc6 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.json
@@ -210065,6 +210065,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -227598,6 +227599,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -262767,6 +262769,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -268482,6 +268485,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -273810,6 +273814,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -274355,6 +274360,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -274924,6 +274930,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -275015,6 +275022,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -390399,6 +390407,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -422097,6 +422106,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -422357,6 +422367,7 @@
                     "properties": {
                       "sha": {
                         "type": "string",
+                        "nullable": true,
                         "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                       },
                       "filename": {
diff --git a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
index 17697ab920..af0c6e32b4 100644
--- a/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -53273,6 +53273,7 @@ paths:
                           properties:
                             sha:
                               type: string
+                              nullable: true
                               example: bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
                               type: string
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
index 13bbf5f28f..76006f0932 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -43930,7 +43930,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise"
@@ -44140,7 +44140,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise"
@@ -44486,7 +44486,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/promote-custom-property-to-enterprise",
+        "operationId": "enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise"
@@ -44697,7 +44697,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise"
@@ -44897,7 +44897,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise"
@@ -45183,7 +45183,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/remove-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-delete-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise"
@@ -255102,6 +255102,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -272635,6 +272636,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -310003,6 +310005,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -315718,6 +315721,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -321070,6 +321074,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -321615,6 +321620,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -322184,6 +322190,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -322275,6 +322282,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -439988,6 +439996,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -471726,6 +471735,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -471986,6 +471996,7 @@
                     "properties": {
                       "sha": {
                         "type": "string",
+                        "nullable": true,
                         "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                       },
                       "filename": {
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 142eeed0ea..888507d9e1 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -17271,7 +17271,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise
@@ -17391,7 +17391,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise
@@ -17456,7 +17456,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/promote-custom-property-to-enterprise
+      operationId: enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise
@@ -17504,7 +17504,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise
@@ -17534,7 +17534,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise
@@ -17627,7 +17627,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/remove-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-delete-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise
@@ -63824,6 +63824,7 @@ paths:
                           properties:
                             sha:
                               type: string
+                              nullable: true
                               example: bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
                               type: string
diff --git a/descriptions/ghec/dereferenced/ghec.deref.json b/descriptions/ghec/dereferenced/ghec.deref.json
index 13bbf5f28f..76006f0932 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.deref.json
@@ -43930,7 +43930,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise"
@@ -44140,7 +44140,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise"
@@ -44486,7 +44486,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/promote-custom-property-to-enterprise",
+        "operationId": "enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise"
@@ -44697,7 +44697,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise"
@@ -44897,7 +44897,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise"
@@ -45183,7 +45183,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/remove-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-delete-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise"
@@ -255102,6 +255102,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -272635,6 +272636,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -310003,6 +310005,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -315718,6 +315721,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -321070,6 +321074,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -321615,6 +321620,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -322184,6 +322190,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -322275,6 +322282,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -439988,6 +439996,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -471726,6 +471735,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -471986,6 +471996,7 @@
                     "properties": {
                       "sha": {
                         "type": "string",
+                        "nullable": true,
                         "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                       },
                       "filename": {
diff --git a/descriptions/ghec/dereferenced/ghec.deref.yaml b/descriptions/ghec/dereferenced/ghec.deref.yaml
index 142eeed0ea..888507d9e1 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.deref.yaml
@@ -17271,7 +17271,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise
@@ -17391,7 +17391,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise
@@ -17456,7 +17456,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/promote-custom-property-to-enterprise
+      operationId: enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise
@@ -17504,7 +17504,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise
@@ -17534,7 +17534,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise
@@ -17627,7 +17627,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/remove-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-delete-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise
@@ -63824,6 +63824,7 @@ paths:
                           properties:
                             sha:
                               type: string
+                              nullable: true
                               example: bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
                               type: string
diff --git a/descriptions/ghec/ghec.2022-11-28.json b/descriptions/ghec/ghec.2022-11-28.json
index 7b584256ec..ce09e254e0 100644
--- a/descriptions/ghec/ghec.2022-11-28.json
+++ b/descriptions/ghec/ghec.2022-11-28.json
@@ -9155,7 +9155,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise"
@@ -9204,7 +9204,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise"
@@ -9308,7 +9308,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/promote-custom-property-to-enterprise",
+        "operationId": "enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise"
@@ -9362,7 +9362,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise"
@@ -9411,7 +9411,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise"
@@ -9484,7 +9484,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/remove-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-delete-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise"
@@ -138579,6 +138579,7 @@
         "properties": {
           "sha": {
             "type": "string",
+            "nullable": true,
             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
           },
           "filename": {
diff --git a/descriptions/ghec/ghec.2022-11-28.yaml b/descriptions/ghec/ghec.2022-11-28.yaml
index 18265fa2c5..995276ee46 100644
--- a/descriptions/ghec/ghec.2022-11-28.yaml
+++ b/descriptions/ghec/ghec.2022-11-28.yaml
@@ -6523,7 +6523,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise
@@ -6562,7 +6562,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise
@@ -6632,7 +6632,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/promote-custom-property-to-enterprise
+      operationId: enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise
@@ -6667,7 +6667,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise
@@ -6701,7 +6701,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise
@@ -6751,7 +6751,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/remove-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-delete-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise
@@ -101579,6 +101579,7 @@ components:
       properties:
         sha:
           type: string
+          nullable: true
           example: bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
           type: string
diff --git a/descriptions/ghec/ghec.json b/descriptions/ghec/ghec.json
index 7b584256ec..ce09e254e0 100644
--- a/descriptions/ghec/ghec.json
+++ b/descriptions/ghec/ghec.json
@@ -9155,7 +9155,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise"
@@ -9204,7 +9204,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-properties",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise"
@@ -9308,7 +9308,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/promote-custom-property-to-enterprise",
+        "operationId": "enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise"
@@ -9362,7 +9362,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/get-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-get-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise"
@@ -9411,7 +9411,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/create-or-update-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise"
@@ -9484,7 +9484,7 @@
         "tags": [
           "enterprise-admin"
         ],
-        "operationId": "enterprise-admin/remove-enterprise-custom-property",
+        "operationId": "enterprise-admin/custom-properties-for-repos-delete-enterprise-definition",
         "externalDocs": {
           "description": "API method documentation",
           "url": "https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise"
@@ -138579,6 +138579,7 @@
         "properties": {
           "sha": {
             "type": "string",
+            "nullable": true,
             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
           },
           "filename": {
diff --git a/descriptions/ghec/ghec.yaml b/descriptions/ghec/ghec.yaml
index 18265fa2c5..995276ee46 100644
--- a/descriptions/ghec/ghec.yaml
+++ b/descriptions/ghec/ghec.yaml
@@ -6523,7 +6523,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-custom-properties-for-an-enterprise
@@ -6562,7 +6562,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-properties
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definitions
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-custom-properties-for-an-enterprise
@@ -6632,7 +6632,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/promote-custom-property-to-enterprise
+      operationId: enterprise-admin/custom-properties-for-repos-promote-definition-to-enterprise
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#promote-a-custom-property-to-an-enterprise
@@ -6667,7 +6667,7 @@ paths:
         Enterprise members can read these properties.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/get-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-get-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#get-a-custom-property-for-an-enterprise
@@ -6701,7 +6701,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/create-or-update-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-create-or-update-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#create-or-update-a-custom-property-for-an-enterprise
@@ -6751,7 +6751,7 @@ paths:
         To use this endpoint, the authenticated user must be an administrator for the enterprise.
       tags:
       - enterprise-admin
-      operationId: enterprise-admin/remove-enterprise-custom-property
+      operationId: enterprise-admin/custom-properties-for-repos-delete-enterprise-definition
       externalDocs:
         description: API method documentation
         url: https://docs.github.com/enterprise-cloud@latest//rest/enterprise-admin/custom-properties#remove-a-custom-property-for-an-enterprise
@@ -101579,6 +101579,7 @@ components:
       properties:
         sha:
           type: string
+          nullable: true
           example: bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
           type: string
diff --git a/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json b/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
index 78f8d76103..431b253a40 100644
--- a/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
+++ b/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.json
@@ -183250,6 +183250,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -200719,6 +200720,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -222497,6 +222499,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -228206,6 +228209,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -233114,6 +233118,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -233654,6 +233659,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -234218,6 +234224,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -234309,6 +234316,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -323563,6 +323571,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -351900,6 +351909,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -352159,6 +352169,7 @@
                     "properties": {
                       "sha": {
                         "type": "string",
+                        "nullable": true,
                         "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                       },
                       "filename": {
diff --git a/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml b/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
index 61e6872ce4..e8cb9a6cfd 100644
--- a/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
+++ b/descriptions/ghes-3.14/dereferenced/ghes-3.14.2022-11-28.deref.yaml
@@ -46768,6 +46768,7 @@ paths:
                           properties:
                             sha:
                               type: string
+                              nullable: true
                               example: bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
                               type: string
diff --git a/descriptions/ghes-3.14/dereferenced/ghes-3.14.deref.json b/descriptions/ghes-3.14/dereferenced/ghes-3.14.deref.json
index 78f8d76103..431b253a40 100644
--- a/descriptions/ghes-3.14/dereferenced/ghes-3.14.deref.json
+++ b/descriptions/ghes-3.14/dereferenced/ghes-3.14.deref.json
@@ -183250,6 +183250,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -200719,6 +200720,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -222497,6 +222499,7 @@
                           "properties": {
                             "sha": {
                               "type": "string",
+                              "nullable": true,
                               "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                             },
                             "filename": {
@@ -228206,6 +228209,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -233114,6 +233118,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -233654,6 +233659,7 @@
                             "properties": {
                               "sha": {
                                 "type": "string",
+                                "nullable": true,
                                 "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                               },
                               "filename": {
@@ -234218,6 +234224,7 @@
                               "properties": {
                                 "sha": {
                                   "type": "string",
+                                  "nullable": true,
                                   "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 },
                                 "filename": {
@@ -234309,6 +234316,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+                            "nullable": true,
                             "example": "bbcd538c8e72b8c175046e27cc8f907076331401"
                           },
                           "filename": {
@@ -323563,6 +323571,7 @@
                         "properties": {
                           "sha": {
                             "type": "string",
+           {"code":"internal","msg":"git-diff-tree: context deadline exceeded","meta":{"cause":"*fmt.wrapError"}}