RedDAV: fix renaming files.

How can no one have spot this bug yet?!? Is no one using WebDAV?
Took me 2 days to figure out it was not my RedDAV rewrite, but that this should have never worked. :-!

include/RedDAV/RedFile.php

@@ -80,7 +80,8 @@ class RedFile extends DAV\Node implements DAV\IFile {
 		$newName = str_replace('/', '%2F', $newName);
 
 		$r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND id = %d",
-			dbesc($this->data['filename']),
+			dbesc($newName),
+			dbesc($this->data['hash']),
 			intval($this->data['id'])
 		);
 	}