message: Animate read receipts for all component updates
diff: @@ -106,7 +106,18 @@ export default class ReadReceiptMarker extends React.PureComponent {
  // we've already done our display - nothing more to do.
  return;
  }
  + this._animateMarker();
  + }
  +
  + componentDidUpdate(prevProps) {
  + const differentLeftOffset = prevProps.leftOffset !== this.props.leftOffset;
  + const visibilityChanged = prevProps.hidden !== this.props.hidden;
  + if (differentLeftOffset || visibilityChanged) {
  + this._animateMarker();
  + }
  + }
  + _animateMarker() {
  // treat new RRs as though they were off the top of the screen
  let oldTop = -15;
  