EppO/rolify — pull request #58 by nfo (2012-04-13 09:30:06+00:00)
Title: Deletions of n-n relation are unreliable with Mongoid.

...etimes not. So, this does not work all the time: `relation.roles.delete(role)`. See http://stackoverflow.com/questions/9132596/rails3-mongoid-many-to-many-relation-and-delete-operation . Instead, remove ids from the Role object and the relation object. Specs still pass.