silverstripe-australia/advancedworkflow — pull request #83 by normann (2013-02-18 03:50:55+00:00)
Title: ManyManyList->removeAll() bug as listed http://open.silverstripe.org/ticket/8258

This is a workaround before ManyManyList->removeAll() bug is fixed. This bug could be replicated when your Group's extension class modifying the sql query in its augmentSQL() function. e.g. in subsites module, GroupSubsites->augmentSQL()