Some GCI's are breaking the labels of the nodes and edges on version 1.1.7

[sasjonge]

Hello,

our ontology contains some GCI's of the form:

A and p.B subclassOf owl:Nothing

This seems to break the labels of the nodes and edges in WebVOWL

I attached an minimal example containing this axiom, which will result in the described bug.

minimal_example_gci_breaking_webvowl.zip