Ios 包装在 AnyView 中时 UIViewControllerRepresentable 无法正常工作

我用UIViewControllerRepresentable创建了这个非常简单的包装:

struct ViewControllerWrapperView: UIViewControllerRepresentable {
    let controller: UIViewController

    func makeUIViewController(context: UIViewControllerRepresentableContext<ViewControllerWrapperView>) -> UIViewController {
        return controller
    }

    func updateUIViewController(_ uiViewController: UIViewController, context: UIViewControllerRepresentableContext<ViewControllerWrapperView>) {}
}

使用它在SwiftUI视图中显示ViewController效果良好:

struct ContentView: View {
    @State private var viewSwitch: Bool = true

    let blueView: ViewControllerWrapperView = {
        let blueViewController = UIViewController()
        blueViewController.view.backgroundColor = .blue
        return ViewControllerWrapperView(controller: blueViewController)
    }()

    let redView: ViewControllerWrapperView = {
        let redViewController = UIViewController()
        redViewController.view.backgroundColor = .red
        return ViewControllerWrapperView(controller: redViewController)
    }()

    var body: some View {
        Button("Switch") { viewSwitch.toggle() }

        if viewSwitch {
            blueView
        } else {
            redView
        }
    }
}

但当我把ViewControllerWrapperView个包裹在AnyView中时，它们就停止正常工作了:

struct ContentView: View {
    @State private var viewSwitch: Bool = true

    let blueView: AnyView = {
        let blueViewController = UIViewController()
        blueViewController.view.backgroundColor = .blue
        return AnyView(ViewControllerWrapperView(controller: blueViewController))
    }()

    let redView: AnyView = {
        let redViewController = UIViewController()
        redViewController.view.backgroundColor = .red
        return AnyView(ViewControllerWrapperView(controller: redViewController))
    }()

    var body: some View {
        Button("Switch") { viewSwitch.toggle() }

        if viewSwitch {
            blueView
        } else {
            redView
        }
    }
}

对于AnyView，点击按钮时视图不会切换.深入研究后，我发现了以下几点:

首次显示视图时，对于这两种情况:

1. 对于蓝色视图，ViewControllerWrapperView上调用makeUIViewController.
2. 对于蓝色视图，在ViewControllerWrapperView上调用updateUIViewController，参数uiViewController是蓝色ViewController.

现在，如果没有AnyView，当点击switch 按钮时，UIViewControllerRepresentable的生命周期将按预期执行:

1. 对于蓝色视图，在ViewControllerWrapperView上调用updateUIViewController，参数uiViewController是蓝色ViewController.
2. 对于红色视图，ViewControllerWrapperView上调用makeUIViewController.
3. 对于红色视图，在ViewControllerWrapperView上调用updateUIViewController，参数uiViewController是红色ViewController.
4. 调用dismantleUIViewController，参数uiViewController是蓝色视图.

But和AnyView当点击switch 按钮时，唯一发生的事情是:

1. 对于RED视图，在ViewControllerWrapperView上调用updateUIViewController，参数uiViewController是BLUE ViewController.

我是错过了什么还是这是SwiftUI中的一个bug？