The mtime in the file cache has to be updated after version rollback (copy...

The mtime in the file cache has to be updated after version rollback (copy from outside of the regular files root) (fixes bug #1720)

lib/filesystemview.php

@@ -451,6 +451,8 @@ class OC_FilesystemView {
 						OC_Filesystem::signal_post_write,
 						array( OC_Filesystem::signal_param_path => $path2)
 					);
+				} else { // no real copy, file comes from somewhere else, e.g. version rollback -> just update the file cache without all the other post_write actions
+					OC_FileCache_Update::update($path2, $this->fakeRoot);
 				}
 				return $result;
 			}