FB7736428: SwiftUI navigation bar items unresponsive

FB7736428.md

With the following code:

import SwiftUI

struct ContentView: View {
    @State private var showPopover = false

    var body: some View {
        NavigationView {
            List {
                EmptyView()
            }
            .popover(isPresented: $showPopover, content: EmptyView.init)
            .navigationBarItems(
                trailing: Button("Show") {
                    self.showPopover = true
                }
            )
        }
    }
}

Follow these steps to reproduce the issue:

1. Tap "Show"
2. Drag modal down to dismiss
3. Tap "Show" again repeatedly
4. Notice that there is no effect
5. Scroll the List
6. Tap "Show" again
7. Notice that the modal is shown once again

Fixed as of iOS 14.6, maybe earlier.