Refresh cache after set a permission (#6634)

CHANGELOG-DEV.md

@@ -9,6 +9,7 @@ HumHub Changelog
 - Enh #6623: Add a hint in the "Dropdown space order" settings to inform that a manual sort is always applied first
 - Enh #6626: Content state flag "was published"
 - Enh #6628: Add self test check: "Mobile App - Push Service"
+- Fix #6634: Refresh cache after set a permission
 
 1.15.0-beta.2 (October 5, 2023)
 -------------------------------

protected/humhub/modules/user/components/PermissionManager.php

@@ -183,7 +183,9 @@ class PermissionManager extends Component
         $record->class = get_class($permission);
         $record->group_id = $groupId;
         $record->state = $state;
-        $record->save();
+        if ($record->save()) {
+            $this->clear();
+        }
     }
 
     /**