visionOS NavigationSplitView - Refreshable ProgressView Disappears

Description

I've encountered an issue with NavigationSplitView on visionOS when using a refreshable ScrollView or List in the detail view.

The Problem: When implementing pull-to-refresh in the detail view of a NavigationSplitView, the ProgressView disappears and generates this warning:

Trying to convert coordinates between views that are in different UIWindows, which isn't supported. Use convertPoint:fromCoordinateSpace: instead.

I discovered that if the detail view includes a .navigationTitle(), the ProgressView remains visible and works correctly!

Below is a minimal reproducible example showing this behavior. When you run this code, you'll notice:

• The sidebar refreshable works fine
• The detail refreshable works only when .navigationTitle("Something") is present
• Remove the navigationTitle and the detail view's refresh indicator disappears

minimal Demo

import SwiftUI

struct MinimalRefreshableDemo: View {
    @State private var items = ["Item 1", "Item 2", "Item 3"]
    @State private var detailItems = ["Detail 1", "Detail 2", "Detail 3"]
    @State private var selectedItem: String? = "Item 1"
    
    var body: some View {
        NavigationSplitView {
            List(items, id: \.self, selection: $selectedItem) { item in
                Text(item)
            }
            .refreshable {
                items = ["Item 1", "Item 2", "Item 3"]
            }
            .navigationTitle("Chat")
        } detail: {
            List {
                ForEach(detailItems, id: \.self) { item in
                    Text(item)
                        .frame(height: 100)
                        .frame(maxWidth: .infinity)
                }
            }
            .refreshable {
                detailItems = ["Detail 1", "Detail 2", "Detail 3"]
            }
            .navigationTitle("Something")
        }
    }
}

#Preview {
    MinimalRefreshableDemo()
}

Is this expected behavior? Has anyone else encountered this issue or found a solution that doesn't require adding a navigation title?