Supplies expected keys in 1st arg of integrate_load_permissions hook

Signed-off-by: Jon Stovell <jonstovell@gmail.com>

Sources/Actions/Admin/Permissions.php

@@ -3453,7 +3453,9 @@ protected static function integrateLoadPermissions(): void
 		}
 
 		// Provide a practical way to modify permissions.
+		self::$permission_groups['membergroup'] = &self::$permission_groups['global'];
 		$permissions_by_scope['membergroup'] = &$permissions_by_scope['global'];
+
 		IntegrationHook::call('integrate_load_permissions', [&self::$permission_groups, &$permissions_by_scope, &self::$left_permission_groups, &$hidden_permissions, &$relabel_permissions]);
 
 		// If the hook made changes, sync them back to our master list.