message: clear min-height on scroll
diff: @@ -211,6 +211,12 @@ module.exports = React.createClass({
  // forget what we wanted, so don't overwrite the saved state unless
  // this appears to be a user-initiated scroll.
  if (sn.scrollTop != this._lastSetScroll) {
  + // when scrolling, we don't care about disappearing typing notifs shrinking the timeline
  + // this might cause the scrollbar to resize in case the max-height was not correct
  + // but that's better than ending up with a lot of whitespace at the bottom of the timeline.
  + // we need to above check because when showing the typing notifs, an onScroll event is also triggered
  + this.clearBlockShrinking();
  +
  this._saveScrollState();
  } else {
  debuglog("Ignoring scroll echo");
  