fix var name

apps/files_versions/lib/versions.php

@@ -164,8 +164,8 @@ class Storage {
 		
 		// if the file already exists than it was a upload of a existing file
 		// over the web interface -> store() is the right function we need here
-		if ($files_view->file_exists($new_path)) {
-			return self::store($newpath);
+		if ($files_view->file_exists($newpath)) {
+			return self::store($new_path);
 		}
 		
 		$abs_newpath = $versions_view->getLocalFile($newpath);