alphagov/whitehall — pull request #843 by matthewford (2013-09-12 11:06:25+00:00)
Title: Unpublishing fixes

Data migration to fix a circular redirect, and validations to prevent this from happening again.

https://www.pivotaltracker.com/story/show/55489170
https://www.pivotaltracker.com/story/show/52623681