id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
31108	Manager isn't available; User has been swapped for 'myuser.MyUser' - again	Man Python	nobody	"Regarding this ticket
https://code.djangoproject.com/ticket/21616
on v.2.2.6 django this problem still exist
For example in usage of django_registration or django-rest-authemail this isse exist
https://github.com/celiao/django-rest-authemail/issues/7#issuecomment-568006319
There is sugestion to use `get_user_model ` but is not sense due that this function exist in `django_registration` eg.
https://github.com/ubernostrum/django-registration/blob/master/src/django_registration/forms.py #line 20
"	Bug	closed	contrib.auth	2.2	Release blocker	duplicate	Manager, User, forms		Unreviewed	0	0	0	0	0	0