joomla/joomla-cms — pull request #555 by yireo (2012-11-17 05:38:15+00:00)
Title: Make sure cache makeId() is calculating a hash with the Itemid GET-parameter included

Also refer to trackitem:
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=29665