Apply suggestion from @nickvergessen

Co-authored-by: Joas Schilling <[email protected]>
Signed-off-by: Benjamin Gaussorgues <[email protected]>

Author: Altahrim

lib/private/Files/Config/UserMountCache.php

@@ -371,7 +371,7 @@ public function getMountsForFileId($fileId, $user = null) {
 			->andWhere(
 				$builder->expr()->orX(
 					$builder->expr()->eq('f.fileid', $builder->createNamedParameter($fileId)),
-					$builder->expr()->eq('f.path', $builder->createNamedParameter('')),
+					$builder->expr()->emptyString('f.path'),
 					$builder->expr()->isNull('f.path'),
 					$builder->expr()->eq(
 						$builder->func()->concat('f.path', $builder->createNamedParameter('/')),