message: Cleared resumption each call
diff: @@ -41,6 +41,7 @@ class NavigationStack extends React.Component<NavigationStackProps, NavigationSt
  onWillNavigateBack({nativeEvent}) {
  var {stateNavigator} = this.props;
  var distance = stateNavigator.stateContext.crumbs.length - nativeEvent.crumb;
  + this.resumeNavigation = null;
  if (stateNavigator.canNavigateBack(distance)) {
  var url = stateNavigator.getNavigationBackLink(distance);
  stateNavigator.navigateLink(url, undefined, true, (_stateContext, resumeNavigation) => {
  @@ -51,6 +52,7 @@ class NavigationStack extends React.Component<NavigationStackProps, NavigationSt
  onDidNavigateBack({nativeEvent}) {
  var mostRecentEventCount = nativeEvent.eventCount;
  this.ref.current.setNativeProps({mostRecentEventCount});
  + if (this.resumeNavigation)
  this.resumeNavigation();
  }
  handleBack() {
  