Clearspace "Open" security groups Automatically appear for ALL users

We are on OpenFire 3.6.3 and Clearspace 2.5.9.

when a new social group is created in Clearspace, and set to be an “open” group, the group appears in ALL users’ spark clients.

However, the group does not exist on the openfire server admin screen.

Is there any way to keep this from happening?