message: Do not push a dummy element with a scroll token for invisible events
  If an event does not `wantTile`, do not add a dummy element with a scroll token, as this can be unperformant with 1000s of events.
diff: @@ -362,10 +362,6 @@ module.exports = React.createClass({
  // replacing all of the DOM elements every time we paginate.
  ret.push(...this._getTilesForEvent(prevEvent, mxEv, last));
  prevEvent = mxEv;
  - } else if (!mxEv.status) {
  - // if we aren't showing the event, put in a dummy scroll token anyway, so
  - // that we can scroll to the right place.
  - ret.push(<li key={eventId} data-scroll-token={eventId}/>);
  }
  var isVisibleReadMarker = false;
  