sfGuardGroup::postSave
======================


.. code-block:: json

   {
     "version": "0.1",
     "data": {
       "id": 7,
       "name": "instructeurs",
       "description": "Instructeurs kano verhuur",
       "created_at": "2025-08-18T09:00:00+00:00",
       "updated_at": "2025-08-18T09:10:00+00:00"
     },
     "meta": {}
   }

Explanation:

- **id**: integer.
- **name**: non-empty-string. Unique group name.
- **description**: string|null.
- **created_at/updated_at**: ISO 8601 datetime strings.

Webhook selection: use `sfGuardGroup::postInsert` for creations and `sfGuardGroup::postUpdate` for updates.