fix(Storage\Local): Do not call getSourcePath() on SplFileInfo

Signed-off-by: provokateurin <kate@provokateurin.de>

lib/private/Files/Storage/Local.php

@@ -106,7 +106,7 @@ class Local extends \OC\Files\Storage\Common {
 				 * @var \SplFileInfo $file
 				 */
 				$file = $it->current();
-				clearstatcache(true, $this->getSourcePath($file));
+				clearstatcache(true, $file->getRealPath());
 				if (in_array($file->getBasename(), ['.', '..'])) {
 					$it->next();
 					continue;