silverstripe-labs/silverstripe-behat-extension — pull request #13 by halkyon (2013-11-28 09:39:17+00:00)
Title: Don't create a group in iAmLoggedInWithPermissions if already exists.

This fixes cases where you've setup the group in the background, but when you want to use that group to log in with that group's permission, it will try to re-create the group again.