message: Fix favourites losing rooms and sorting weirdly
  By not flagging the room as inserted, we end up sorting it.
  Fixes
diff: @@ -287,6 +287,7 @@ class RoomListStore extends Store {
  // Speed optimization: Skip the loop below if we're not going to do anything productive
  if (!hasRoom || LIST_ORDERS[key] !== 'recent') {
  listsClone[key] = this._state.lists[key];
  + inserted = true; // Ensure that we don't try and sort the room into the tag
  continue;
  } else {
  listsClone[key] = [];
  