Scheduling plugin not updating responding attendee status take two

Signed-off-by: Anna Larch <anna@nextcloud.com>

Author: miaulalala

apps/dav/lib/Controller/InvitationResponseController.php

@@ -200,7 +200,7 @@ private function buildITipResponse(array $row, string $partStat, int $guests=nul
 		$iTipMessage->method = 'REPLY';
 		$iTipMessage->sequence = $row['sequence'];
 		$iTipMessage->sender = $row['attendee'];
-		$iTipMessage->recipient = $row['organizer'];
+		$iTipMessage->recipient = $row['attendee'];
 
 		$message = <<<EOF
 BEGIN:VCALENDAR