ezsystems/ezpublish-kernel — pull request #926 by joaoinacio (2014-07-11 16:54:47+00:00)
Title: FIX EZP-23121: assignRole allows duplicate role/limitation assignments.

JIRA: https://jira.ez.no/browse/EZP-23121

Description:
Role Service assignRoleToUser/Group allows creating duplicate role/limitation assignments.
This can be verified in legacy admin (after clearing cache) or in database.