django/django — pull request #862 by romanalexander (2013-02-27 03:44:27+00:00)
Title: Added models validator for REQUIRED_FIELDS not being a list.

I spent some time debugging `django-admin.py createsuperuser` raising `optparse.OptionConflictError`. I forgot to make REQUIRED_FIELDS custom user model a list. This validation error should help others avoid my mistake.