message: Changed to tab corresponding to navigation
  After changing from didShow to didMove changing tabs works. It used to put in a funny navigation when immediately changing because the didShow of crumb 0 fired even though it was crumb 1 that was active
diff: @@ -42,6 +42,9 @@ RCT_EXPORT_METHOD(render:(NSInteger)crumb tab:(NSInteger)tab titles:(NSArray *)t
  }
  [navigationController setViewControllers:controllers animated:true];
  }
  + if ([rootViewController isKindOfClass:[UITabBarController class]]) {
  + ((UITabBarController *)rootViewController).selectedViewController = navigationController;
  + }
  }
  @end
  