django/django — pull request #1409 by timgraham (2013-07-29 12:29:18+00:00)
Title: Fixed #8620 -- Allowed ModelForm.Meta.exclude to exclude explicitely declared fields.

Thanks levity for the report and marcinnowak, himonrura, and koenb
for work on the patch.

I don't see a use case where you would declare a field on a form only to exclude it, but posting a PR to give someone a chance to object.