Issue #3329909: Display a list of members in the detail view of the OpenStack server group

modules/cloud_service_providers/openstack/src/Entity/OpenStackServerGroup.php

@@ -206,7 +206,7 @@ class OpenStackServerGroup extends CloudContentEntityBase implements OpenStackSe
       ->setDescription(t('A list of members in the server group.'))
       ->setDisplayOptions('view', [
         'label' => 'inline',
-        'type' => 'string',
+        'type' => 'server_group_members_formatter',
         'weight' => -5,
       ])
       ->setReadOnly(TRUE);