Merge pull request #894 from nextcloud/backport/892/stable23

[stable23] ignore exception to group sync

Author: ArtificialOwl

lib/Service/SyncService.php

@@ -299,7 +299,11 @@ public function syncNextcloudGroup(string $groupId): Circle {
 			$event = new FederatedEvent(SingleMemberAdd::class);
 			$event->setCircle($circle);
 			$event->setMember($member);
-			$this->federatedEventService->newEvent($event);
+
+			try {
+				$this->federatedEventService->newEvent($event);
+			} catch (Exception $e) {
+			}
 
 //			$this->memberRequest->insertOrUpdate($member);
 		}