If I create a top-level collection protected by a group local to a gateway then change the group permissions to "CMIP5 Research" in the Collection/Administration/"Edit this collection metadata" section I cannot change it back. The Administration tab no longer shows options to edit metadata when the change is committed.

I assume this is because the group "CMIP5 Research" is owned by another gateway.

This is tested in 1.2.0-RC2