message: Allow missing sender in event
diff: @@ -1182,7 +1182,7 @@ export default class EventTile extends React.Component<IProps, IState> {
  this.props.alwaysShowTimestamps || this.state.hover,
  );
  - const isOwnEvent = this.props.mxEvent.sender.userId === MatrixClientPeg.get().getUserId();
  + const isOwnEvent = this.props.mxEvent?.sender?.userId === MatrixClientPeg.get().getUserId();
  // tab-index=-1 to allow it to be focusable but do not add tab stop for it, primarily for screen readers
  return (
  