message: Fix incorrect logic to hide thread relations
diff: @@ -460,7 +460,7 @@ export default class MessagePanel extends React.Component<IProps, IState> {
  // Checking if the message has a "parentEventId" as we do not
  // want to hide the root event of the thread
  - if (mxEv.isThreadRoot && this.props.hideThreadedMessages
  + if (mxEv.isThreadRelation && this.props.hideThreadedMessages
  && SettingsStore.getValue("feature_thread")) {
  return false;
  }
  