edx/edx-platform — pull request #4948 by cahrens (2014-08-22 20:44:48+00:00)
Title: Unflag Group Configurations, Render only existing children in staff view...

... of split_test.

See #4947

@auraz and @tymofij Make sure this gets merged Monday before @jzoldak cuts the release candidate (8 AM EST).