NavigationSplitView as sheet content is missing NavigationBars on macOS

I need to display a "Search and add item to list" workflow in a SwiftUI Mac App that requires comparing lots of details. Therefore I want to show a NavigationSplitView with search results and detail view in a sheet (to make the workflow modal).

However the NavigationSplitView is missing its children's navigation bars and bar items.

Here is a really simple sample app demonstrating the problem. It should display a navigationTitle but doesn't:

struct ContentView: View {
    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundStyle(.tint)
            Text("Hello, world!")
        }
        .padding()
		.frame(width:800, height:800)
		.sheet(isPresented: .constant(true), content: {
			NavigationSplitView {
				List {
					Text("Item")
				}
				.navigationTitle("Title")
			} detail: {
				Text("Detail")
			}
			.frame(width:600, height:400)
		})
    }
}

How to fix/work around this?