[Feature] Prevent sending notification to user when bulk reassign

src/Bundle/ChillPersonBundle/AccompanyingPeriod/Events/UserRefEventSubscriber.php

@@ -62,6 +62,7 @@ class UserRefEventSubscriber implements EventSubscriberInterface
             && $period->getUser() !== $this->security->getUser()
             && null !== $period->getUser()
             && $period->getStep() !== AccompanyingPeriod::STEP_DRAFT
+            && !$period->isPreventUserIsChangedNotification()
         ) {
             $this->generateNotificationToUser($period);
         }