bug: getBounds and getBounds2 in FitRecipe both return defaults even when bounds are set #158

def test_getBounds():
    recipe = FitRecipe("recipe")
    recipe.create_new_variable("var1", 1)
    recipe.restrain("var1", lb=-1, ub=1)
    actual_bounds = recipe.getBounds()
    expected_bounds = [(-1, 1)]
    assert actual_bounds == expected_bounds

def test_getBounds2():
    recipe = FitRecipe("recipe")
    recipe.create_new_variable("var1", 1)
    recipe.create_new_variable("var2", 2)
    recipe.restrain("var1", lb=0, ub=5)
    recipe.restrain("var2", lb=-1, ub=3)
    actual_lower_bounds, actual_upper_bounds = recipe.getBounds2()
    expected_lower_bounds = [0, -1]
    expected_upper_bounds = [5, 3]
    assert list(actual_lower_bounds) == expected_lower_bounds
    assert list(actual_upper_bounds) == expected_upper_bounds

FAILED tests/test_fitrecipe.py::test_getBounds - assert [[-inf, inf]] == [(-1, 1)]
FAILED tests/test_fitrecipe.py::test_getBounds2 - assert [np.float64(-...float64(-inf)] == [0, -1]