At this time, it appears that even if a user may have these two rights locally, he/she nevertheless requires these in at least one of his/her global groups in order to manage global permissions. This is needless, especially as with Wikimedia the rights changes are all done on Meta.
Version: unspecified
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=17308