Group v2 update:

- Update the grequest services definition. They need to be the same as the relation itself which is group_membership_request. This means that they were not used before.
- Also remove the unsetting of the PermissionProvider permissions. As you would debug in there, these permissions do not exist there anymore so nothing to unset.

modules/custom/grequest/grequest.services.yml

@@ -1,26 +1,26 @@
 services:
   # Specific group relation handlers.
-  group.relation_handler.operation_provider.grequest:
+  group.relation_handler.operation_provider.group_membership_request:
     class: 'Drupal\grequest\Plugin\Group\RelationHandler\GroupMembershipRequestOperationProvider'
     arguments: [ '@group.relation_handler.operation_provider', '@current_user', '@string_translation' ]
     shared: false
 
-  group.relation_handler.permission_provider.grequest:
+  group.relation_handler.permission_provider.group_membership_request:
     class: 'Drupal\grequest\Plugin\Group\RelationHandler\GroupMembershipRequestPermissionProvider'
     arguments: [ '@group.relation_handler.permission_provider' ]
     shared: false
 
-  group.relation_handler.post_install.grequest:
+  group.relation_handler.post_install.group_membership_request:
     class: 'Drupal\grequest\Plugin\Group\RelationHandler\GroupMembershipRequestPostInstall'
     arguments: [ '@group.relation_handler.post_install', '@entity_type.manager', '@string_translation' ]
     shared: false
 
-  group.relation_handler.access_control.grequest:
+  group.relation_handler.access_control.group_membership_request:
     class: 'Drupal\grequest\Plugin\Group\RelationHandler\GroupMembershipRequestAccessControl'
     arguments: [ '@group.relation_handler.access_control' ]
     shared: false
 
-  group.relation_handler.entity_reference.grequest:
+  group.relation_handler.entity_reference.group_membership_request:
     class: 'Drupal\grequest\Plugin\Group\RelationHandler\GroupMembershipRequestEntityReference'
     arguments: [ '@group.relation_handler.entity_reference' ]
     shared: false

modules/custom/grequest/src/Plugin/Group/RelationHandler/GroupMembershipRequestPermissionProvider.php

@@ -55,14 +55,6 @@ public function buildPermissions() {
       'allowed for' => ['outsider'],
     ];
 
-    // These are handled by 'administer members'.
-    unset($permissions['update own group_membership_request content']);
-    unset($permissions['view group_membership_request content']);
-    unset($permissions['create group_membership_request content']);
-    unset($permissions['update any group_membership_request content']);
-    unset($permissions['delete any group_membership_request content']);
-    unset($permissions['delete own group_membership_request content']);
-
     return $permissions;
   }