hook in registration view to set auth backend if required (#53757)

src/authentic2_auth_fedict/__init__.py

@@ -29,6 +29,13 @@ class AppConfig(django.apps.AppConfig):
 
         user_logged_in.connect(signals.on_user_logged_in)
 
+    def a2_hook_event(self, name, **kwargs):
+        if name == 'registration':
+            logger = logging.getLogger(__name__)
+            if kwargs.get('authentication_method') == 'fedict':
+                user = kwargs.get('user')
+                user.backend = 'authentic2_auth_fedict.backends.FedictBackend'
+
 
 default_app_config = 'authentic2_auth_fedict.AppConfig'