My thought on how to fix this is to change this line in django.contrib.auth.forms.isValidUser from this:
self.user_cache = User.objects.get(username=field_data)
to this:
self.user_cache = User.objects.filter(is_active=True).get(username=field_data)
Or add a second Manager to django.contrib.auth.models :
class ActiveUser(models.Manager):
def get_query_set(self):
return super(ActiveUser, self).get_query_set().filter(is_active=True)
and add these two lines to django.contrib.auth.models.Article :
objects = models.Manager()
published = ActiveUser()
and instead of the line above for isValidUser, put this:
self.user_cache = ActiveUser.objects.get(username=field_data)
Don't forget to do: from django.contrib.auth.users.models import ActiveUser
