Admin site forms enforce arbitrary requirements on usernames that aren't required by the User model
|Reported by:||Owned by:||nobody|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
django/contrib/auth/forms.py : UserCreationForm and UserChangeForm both use RegexFields (DRY violation here, by the way) for the username. Shouldn't this checking be in the User model class instead? User objects created through other channels don't get these checks.
In my app I want usernames to be email addresses, and there was no problem with this until I started using the admin site to update User entries.