Navigation + Tabview + Sheet broken in iOS 15

It looks like Navigation + TabView + Sheet is broken in iOS 15.

When I do this: ContentView -> DetailView -> Bottom Sheet

When the bottom sheet comes up, the Detail view is automatically popped off the stack: https://www.youtube.com/watch?v=gguLptAx0l4

I expect the Detail view to stay there even when the bottom sheet appears. Does anyone have any idea on why this happens and how to fix it?

Here is my sample code:

import SwiftUI
import RealmSwift

struct ContentView: View {

    var body: some View {
        NavigationView {
            TabView {
                TabItemView(num: 1)
                    .tabItem {
                        Text("One")
                    }
                TabItemView(num: 2)
                    .tabItem {
                        Text("Two")
                    }
            }
        }
    }
}

struct TabItemView: View {

    private let num: Int

    init(num: Int) {
        self.num = num
    }

    var body: some View {
        NavigationLink(destination: DetailView(text: "Detail View \(num)")) {
            Text("Go to Detail View")
        }
    }
}

struct DetailView: View {

    @State private var showingSheet = false

    private let text: String

    init(text: String) {
        self.text = text
    }

    var body: some View {
        Button("Open Sheet") {
            showingSheet.toggle()
        }.sheet(isPresented: $showingSheet) {
            Text("Sheet Text")
        }
    }
}

This works on iOS 14.