message: Comments for instance variables
diff: @@ -86,7 +86,12 @@ module.exports = React.createClass({
  cli.on("Group.myMembership", this._onGroupMyMembership);
  this._groupStores = {};
  - this._selectedTagsRoomIdsForGroup = {};
  + // A map between tags which are group IDs and the room IDs of rooms that should be kept
  + // in the room list when filtering by that tag.
  + this._selectedTagsRoomIdsForGroup = {
  + // $groupId: [$roomId1, $roomId2, ...],
  + };
  + // All rooms that should be kept in the room list when filtering
  this._selectedTagsRoomIds = [];
  // When the selected tags are changed, initialise a group store if necessary
  this._filterStoreToken = FilterStore.addListener(() => {
  