message: Add comment about roomId potentially not being resolved following an update from RoomViewStore
diff: @@ -183,6 +183,8 @@ module.exports = React.createClass({
  }
  this.setState(newState, () => {
  + // At this point, this.state.roomId could be null (e.g. the alias might not
  + // have been resolved yet) so anything called here must handle this case.
  this._onHaveRoom();
  this.onRoom(MatrixClientPeg.get().getRoom(this.state.roomId));
  });
  