*/
        public function preUpdate(PreUpdateEventArgs $eventArgs) {
                //Check that we have a group instance
-               if (($user = $eventArgs->getEntity()) instanceof Group) {
+               if (($user = $eventArgs->getObject()) instanceof Group) {
                        //Set updated value
                        $user->setUpdated(new \DateTime('now'));
                }
         * @return string
         */
        public function getRole(): string {
+               //XXX: $prefix = 'ROLE_' set in Role*Voter classes
                return 'ROLE_'.strtoupper($this->title);
        }
 }