ios – UIViewPropertyAnimator isReversed would not replace view remodel

I’ve a view that I need to animate the next manner :

• Change view remodel Y scale all the way down to 0 utilizing CGAffineTransform
• Change view background shade and scale view remodel again to .id

Since I need to reuse the identical easing perform, I wish to have just one UIViewPropertyAnimator and use its isReversed property.

Nevertheless once I do that, the end result appears good on display screen however the inside scale stays at 0.

Here is a easy ViewController that replicates the difficulty :

import UIKit
import Mix

class ViewController: UIViewController {
    personal var testView: UIView = {
        let view = UIView()
        view.backgroundColor = .purple
        return view
    }()

    personal lazy var scaleAnimator = UIViewPropertyAnimator(period: 2,
                                                            controlPoint1: CGPoint(x: 0.36, y: 0),
                                                            controlPoint2: CGPoint(x: 0.66, y: -0.56))
    personal var cancellables = Set<AnyCancellable>()

    override func viewDidLoad() {
        tremendous.viewDidLoad()

        view.addSubview(testView)
        testView.translatesAutoresizingMaskIntoConstraints = false

        NSLayoutConstraint.activate([
            testView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            testView.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            testView.widthAnchor.constraint(equalToConstant: 200),
            testView.heightAnchor.constraint(equalToConstant: 200),
        ])

        setupAnimation()

        DispatchQueue.most important.asyncAfter(deadline: .now() + 1) {
            self.startAnimation()
        }
    }

    func setupAnimation() {
        scaleAnimator.pausesOnCompletion = true

        scaleAnimator.addAnimations {
            self.testView.remodel = CGAffineTransform(scaleX: 1, y: 1e-10) // Scale animations to precisely 0.0 do not work
        }

        scaleAnimator.writer(for: .isRunning, choices: [.new])
            .sink { [weak self] isRunning in
                guard let self,
                      !isRunning else {
                    print("Animation begin")
                    print("Scale Y : (self!.testView.remodel.d)")
                    return
                }

                guard !self.scaleAnimator.isReversed else {
                    print("Animation finish")
                    print("Scale Y : (self.testView.remodel.d)")
                    return
                }

                print("Half animation")
                print("Scale Y : (self.testView.remodel.d)")
                self.testView.backgroundColor = .blue
                self.scaleAnimator.isReversed = true
                self.scaleAnimator.startAnimation()
            }
            .retailer(in: &cancellables)
    }

    func startAnimation() {
        scaleAnimator.isReversed = false
        scaleAnimator.startAnimation()
    }
}

On the finish, this code prints that the Y scale is 0, however on display screen I’ve a 200px blue sq.. If I examine the view, its scale is 0.

What am I doing flawed right here ?