Merge pull request #37046 from max65482/fix_event_moving

Fix event moving issues

apps/dav/lib/CalDAV/CalDavBackend.php

@@ -1375,8 +1375,8 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
 			$this->purgeProperties($sourceCalendarId, $objectId);
 			$this->updateProperties($targetCalendarId, $object['uri'], $object['calendardata'], $calendarType);
 
-			$this->addChange($sourceCalendarId, $object['uri'], 1, $calendarType);
-			$this->addChange($targetCalendarId, $object['uri'], 3, $calendarType);
+			$this->addChange($sourceCalendarId, $object['uri'], 3, $calendarType);
+			$this->addChange($targetCalendarId, $object['uri'], 1, $calendarType);
 
 			$object = $this->getCalendarObjectById($newPrincipalUri, $objectId);
 			// Calendar Object wasn't found - possibly because it was deleted in the meantime by a different client