This should never happen now that the bug causing duplicate cases is fixed, but it should still be more robust here.
A Pivotal Tracker story has been created for this Bug: http://www.pivotaltracker.com/story/show/26952747
Carl Meyer changed story state to started in Pivotal Tracker
Carl Meyer changed story state to finished in Pivotal Tracker
Carl Meyer changed story state to delivered in Pivotal Tracker
Cameron Dawson added a comment in Pivotal Tracker: looks good. it does a great job of cleaning up duplicates that were created.
Cameron Dawson changed story state to accepted in Pivotal Tracker
Bumping to verified as [qa-] due to age of bug, shipped.