User name is not asked again by manage.py if invalid value is given
|Reported by:||jmu||Owned by:||Adrian Holovaty|
|Component:||Core (Management commands)||Version:||0.95|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
When creating superuser and given name is invalid, manage.py does not request the name again but asks for email address. After password is given, Null user is tried to write into database.