For anyone who uses bloom to release your catkin packages:

You need to update rosdistro to at least version 0.2.12. There was a
critical bug fix which got released in that version of rosdistro, without
which any new automated bloom pull requests will be incorrect.

You can update rosdistro like this on ubuntu:

$ sudo apt-get update
$ sudo apt-get install python-rosdistro

On other platforms:

$ sudo pip install -U rosdistro  # Only use this on non-ubuntu machines

I will release a new version of bloom in the near future which has a
versioned dependency on rosdistro, and will prevent this problem from
occurring in the future.

Sorry for the disruption.

-- 
William Woodall
ROS Development Team
william@osrfoundation.org
http://williamjwoodall.com/