Change User model in BaseUserCreationForm/UserChangeForm.Meta to get_user_model().

[Nikolay Fedorov]

Please Change standart User model in BaseUserCreationForm.Meta in django.contrib.auth.forms to get_user_model()

class BaseUserCreationForm(forms.ModelForm):

    class Meta:
        model = get_user_model()
        fields = ("username",)
        field_classes = {"username": UsernameField}

[Mariusz Felisiak]

Duplicate of #19353.