message: Fix message bubble corners being wrong in the presence of hidden events
diff: @@ -705,9 +705,9 @@ export default class MessagePanel extends React.Component<IProps, IState> {
  let willWantDateSeparator = false;
  let lastInSection = true;
  - if (nextEvent) {
  - willWantDateSeparator = this.wantsDateSeparator(mxEv, nextEvent.getDate() || new Date());
  - lastInSection = willWantDateSeparator || mxEv.getSender() !== nextEvent.getSender();
  + if (nextEventWithTile) {
  + willWantDateSeparator = this.wantsDateSeparator(mxEv, nextEventWithTile.getDate() || new Date());
  + lastInSection = willWantDateSeparator || mxEv.getSender() !== nextEventWithTile.getSender();
  }
  // is this a continuation of the previous message?
  