non-POSIX groups make no sense for NIS group maps.
Additionally, exposing non-POSIX groups triggers rebuild of NIS maps every time a non-POSIX group gets changed. When there are many members being added to the group, this contributes to overall slowdown of ipa user-add or similar operation.
ipa user-add
Metadata Update from @abbra: - Issue assigned to abbra
PR: https://github.com/freeipa/freeipa/pull/6867
Metadata Update from @abbra: - Custom field rhbz adjusted to https://bugzilla.redhat.com/show_bug.cgi?id=2159195