From 0d7d396d8013d77027d50a6c54350690416d344c Mon Sep 17 00:00:00 2001
From: Bjoern Schiessle <schiessle@owncloud.com>
Date: Tue, 29 Oct 2013 16:30:47 +0100
Subject: [PATCH] make sure that also the storage etag gets changed

---
 lib/private/files/cache/updater.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/private/files/cache/updater.php b/lib/private/files/cache/updater.php
index e711b21e34..48fb3ba6c5 100644
--- a/lib/private/files/cache/updater.php
+++ b/lib/private/files/cache/updater.php
@@ -135,10 +135,13 @@ class Updater {
 
 			while ($id !== -1) {
 				$cache->update($id, array('mtime' => $time, 'etag' => $storage->getETag($internalPath)));
-				$realPath = dirname($realPath);
-				// check storage for parent in case we change the storage in this step
-				list($storage, $internalPath) = $view->resolvePath($realPath);
-				if ($internalPath) {
+				if ($realPath !== '') {
+					$realPath = dirname($realPath);
+					if($realPath === '/') {
+						$realPath = "";
+					}
+					// check storage for parent in case we change the storage in this step
+					list($storage, $internalPath) = $view->resolvePath($realPath);
 					$cache = $storage->getCache();
 					$id = $cache->getId($internalPath);
 				} else {