message: Removed unnecessary brackets
diff: @@ -27,7 +27,7 @@ class NavigationMotion extends React.Component<any, any> {
  this.getStateNavigator().offNavigate(this.onNavigate);
  }
  onNavigate(oldState, state, data) {
  - this.setState((prevState) => {
  + this.setState(prevState => {
  var scenes = {...prevState.scenes};
  var {url, crumbs} = this.getStateNavigator().stateContext;
  var previousScene = crumbs.length > 0 ? prevState.scenes[crumbs[crumbs.length - 1].url] : null;
  @@ -38,7 +38,7 @@ class NavigationMotion extends React.Component<any, any> {
  }
  moveScene(url) {
  return data => {
  - this.setState((prevState) => {
  + this.setState(prevState => {
  var scenes = {...prevState.scenes};
  scenes[url] = {...scenes[url], data};
  return {scenes};
  @@ -46,7 +46,7 @@ class NavigationMotion extends React.Component<any, any> {
  };
  }
  clearScene(url) {
  - this.setState((prevState) => {
  + this.setState(prevState => {
  var scenes = {...prevState.scenes};
  delete scenes[url];
  return {scenes};
  