joomla/joomla-platform — pull request #1344 by Octobit (2012-07-05 11:51:04+00:00)
Title: Errors during a save redirect incorrectly to page resulting in creation of new record.

See Joomla tracker issue #28770

http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=28770