storeSpace remote api cannot update space category

The remote API docs say the space group can be updated by storeSpace. I can only guess that "space group" means "space category" in the UI. Using storeSpace after using setSpaceGroup has no affect it seems on the UI.

Space storeSpace(String token, Space space) - create a new space if passing in a name, key and description or update the properties of an existing space. Only name, homepage or space group can be changed.