Merge pull request #11611 from nextcloud/fix/10852

Allow userId to be null

Author: rullzer

apps/files_sharing/lib/Controller/ShareAPIController.php

@@ -113,7 +113,7 @@ public function __construct(
 		IUserManager $userManager,
 		IRootFolder $rootFolder,
 		IURLGenerator $urlGenerator,
-		string $userId,
+		string $userId = null,
 		IL10N $l10n,
 		IConfig $config,
 		IAppManager $appManager,