Missleading javadoc in RightsManager.getAllGroupsNamesForMember that causes problems in a multiwiki environment.

Even if the javadoc for RightsManager.getAllGroupsNamesForMember(...) states "Get all groups containing provided user.", it internally uses XWikiGroupService.getAllGroupsNamesForMember(...) that has a more specific/restrictive javadoc and behavior: "Get all groups containing provided member in the provided member wiki." meaning that it only looks in the member's origin wiki.