In ezstarrating there is a patch file for ezcontentobjecttreenode.php

• this file is needed up to ezp 4.1.4. It is not needed anymore since ezp version 4.2.0

• this patch is only needed for using the extended attribute filter provided by the extension

• this patch is not mentioned in the install instructions in README file, only in the php sources that implement the ext. attr. filter

So I vote for the patch to be either better documented or altogether removed