message: Skip updates in collapsed lists too
diff: @@ -202,6 +202,13 @@ export default class RoomSublist extends React.Component<IProps, IState> {
  return true;
  }
  + // Before we go analyzing the rooms, we can see if we're collapsed. If we're collapsed, we don't need
  + // to render anything. We do this after the height check though to ensure that the height gets appropriately
  + // calculated for when/if we become uncollapsed.
  + if (!nextState.isExpanded) {
  + return false;
  + }
  +
  // Quickly double check we're not about to break something due to the number of rooms changing.
  if (this.state.rooms.length !== nextState.rooms.length) {
  return true;
  