I'm planning to make a web interface to allow superadministrators to update uncategorized groups' place topics. I don't need to change the place topic itself (so, not the /placeTopics endpoint), but rather, update the placeTopics for a given /api/core/v3/places/placeID. I get 200 OK if I PUT a minimal group structure (ID, type, groupType, name, displayName), but I get a 400 Bad Request error when I try to add a placeTopics array to it. Are group placeTopics supposed to be updatable through the REST API, or has that functionality not been built yet? Is there a different way to support categorizing groups? Thank you!