userId can be null in case of the poll request

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

lib/Controller/APIController.php

@@ -52,7 +52,7 @@ class APIController extends OCSController {
 								IRequest $request,
 								TokenMapper $tokenMapper,
 								ITimeFactory $timeFactory,
-								string $userId,
+								string $userId = null,
 								IManager $notificationManager) {
 		parent::__construct($appName, $request);