Always compare object mappings when ignore_eq is enabled.

[gdlg]

The object comparer indirectly relies on the __eq__ method of attributes in the check x_attrs != y_attrs even when ignore_eq is set.

This PR changes it to always compare the mappings when ignore_eq is enabled. I have also created a test case using the OrmObj object.

The test_compare.py passes on its own; however when I installed Django to run the other tests; I ran into this error using pytest testfixtures/tests/test_django/test_compare.py:

E   django.core.exceptions.ImproperlyConfigured: Requested setting INSTALLED_APPS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

I am not sure how to run the tests properly.

[cjw296]

This is a really nice find, thanks! What a nasty edge case bug...

[cjw296]

https://pypi.org/project/testfixtures/6.14.2/ is out now with the fix, thanks again!

[gdlg]

@cjw296 So quick to update the pip package! Thank you very much :-)