providers/oauth2: fix migration (cherry-pick #12138) (#12140)

providers/oauth2: fix migration (#12138)

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: Jens L. <jens@goauthentik.io>

authentik/providers/oauth2/migrations/0024_remove_oauth2provider_redirect_uris_and_more.py

@@ -1,4 +1,5 @@
 # Generated by Django 5.0.9 on 2024-11-04 12:56
+from dataclasses import asdict
 from django.apps.registry import Apps
 
 from django.db.backends.base.schema import BaseDatabaseSchemaEditor
@@ -18,8 +19,8 @@ def migrate_redirect_uris(apps: Apps, schema_editor: BaseDatabaseSchemaEditor):
             mode = RedirectURIMatchingMode.STRICT
             if old == "*" or old == ".*":
                 mode = RedirectURIMatchingMode.REGEX
-            uris.append(RedirectURI(mode, url=old))
-        provider.redirect_uris = uris
+            uris.append(asdict(RedirectURI(mode, url=old)))
+        provider._redirect_uris = uris
         provider.save()