[Issue] Problem when drag and release instantly, not swipe back view about navigation-stack HOT 2 OPEN

public func navigationController(_ navigationController: UINavigationController,
                                     willShow viewController: UIViewController,
                                     animated: Bool) {

        stackDelegate?.navigationController?(navigationController, willShow: viewController, animated: animated)

        if navigationController.viewControllers.count > screens.count + 1 {
            screens.append(view.takeScreenshot())
        }
//        else
//        if navigationController.viewControllers.count == screens.count && screens.count > 0 {
//            screens.removeLast()
//        }
    }
    
    public func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {
        stackDelegate?.navigationController?(navigationController, didShow: viewController, animated: animated)
        if navigationController.viewControllers.count == screens.count && screens.count > 0 {
            screens.removeLast()
        }
    }