Fixed #35678 -- Removed "usable_password" field from BaseUserCreationForm.

Refs #34429: Following the implementation allowing the setting of
unusable passwords via the admin site, the `BaseUserCreationForm` and
`UserCreationForm` were extended to include a new field for choosing
whether password-based authentication for the new user should be enabled
or disabled at creation time.
Given that these forms are designed to be extended when implementing
custom user models, this branch ensures that this new field is moved to
a new, admin-dedicated, user creation form `AdminUserCreationForm`.

Regression in e626716c28b6286f8cf0f8174077f3d2244f3eb3.

Thanks Simon Willison for the report, Fabian Braun and Sarah Boyce for
the review.

1 files changed, 2 insertions, 2 deletions

diff --git a/django/contrib/auth/admin.py b/django/contrib/auth/admin.py
index 8e1d63ef07..e977d3ded5 100644
--- a/django/contrib/auth/admin.py
+++ b/django/contrib/auth/admin.py
@@ -5,8 +5,8 @@ from django.contrib.admin.utils import unquote
 from django.contrib.auth import update_session_auth_hash
 from django.contrib.auth.forms import (
     AdminPasswordChangeForm,
+    AdminUserCreationForm,
     UserChangeForm,
-    UserCreationForm,
 )
 from django.contrib.auth.models import Group, User
 from django.core.exceptions import PermissionDenied
@@ -71,7 +71,7 @@ class UserAdmin(admin.ModelAdmin):
         ),
     )
     form = UserChangeForm
-    add_form = UserCreationForm
+    add_form = AdminUserCreationForm
     change_password_form = AdminPasswordChangeForm
     list_display = ("username", "email", "first_name", "last_name", "is_staff")
     list_filter = ("is_staff", "is_superuser", "is_active", "groups")