UIViewControllerRepresentable memory leak with SwiftUI

I have created a very simple example of how a UIViewController represented by UIViewControllerRepresentable is never deallocated.

struct ContentView : View {
    @State private var showRepView = true
    
    var body: some View {
        VStack {
            Text("Square").font(.largeTitle).tapAction {
                self.showRepView.toggle()
            }
            
            if showRepView {
                SomeRepView().frame(width: 100, height: 200)
            }
        }

    }
}

The representation implementation follows:

struct SomeRepView: View {
    var body: some View {
        RepViewController()
    }
}

struct RepViewController: UIViewControllerRepresentable
{
    func makeUIViewController(context: Context) -> SomeCustomeUIViewController {
        let vc =  SomeCustomeUIViewController()
        print("INIT \(vc)")
        return vc
    }
    
    func updateUIViewController(_ uiViewController: SomeCustomeUIViewController, context: Context) {
    }
    
    static func dismantleUIViewController(_ uiViewController: SomeCustomeUIViewController, coordinator: Self.Coordinator) {
        print("DISMANTLE")
    }
    
}

class SomeCustomeUIViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = UIColor.green
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        print("viewWillDissapear \(self)")
    }
    
    deinit {
        print("DEINIT \(self)")
    }
    
}

By tapping on the "Square" button,

SomeRepView

That can be seen by the logged messages and I also confirmed with Instruments.

Note that SomeRepView is released properly. It is only the corresponding view controller what remains allocated.

Also note that the

UIViewController.viewWillDissappear

UIViewControllerRepresentable.dismantleUIViewController

This is a typical output when pressing the Square button repeatedly.

INIT <SomeCustomeUIViewController: 0x100b1af70>
DISMANTLE
viewWillDissapear <SomeCustomeUIViewController: 0x100b1af70>
INIT <SomeCustomeUIViewController: 0x100a0a8c0>
DISMANTLE
viewWillDissapear <SomeCustomeUIViewController: 0x100a0a8c0>
INIT <SomeCustomeUIViewController: 0x100b23690>
DISMANTLE
viewWillDissapear <SomeCustomeUIViewController: 0x100b23690>

As shown,

DEINIT

Running with iOS13, beta 2, iPad 6th Gen and on the simulator. I also tried triggered a Simulate Memory Warning. But no effect. The controllers persist in memory.

My question is... is it a bug? Or am I doing something wrong?