message: Checked React for deferred updates
diff: @@ -38,6 +38,7 @@ class AsyncStateNavigator extends StateNavigator {
  }
  private suspendNavigation(stateContext, resumeNavigation, defer) {
  + defer = defer && ReactDOM.unstable_deferredUpdates;
  var { oldState, state, data, asyncData } = stateContext;
  if (defer)
  this.navigationHandler.setState(({ context }) => ({ context: { ...context, nextState: state, nextData: data } }));
  