Example of Xcode 13 FocusState not working on Modal Sheets

FocusState Not working

import SwiftUI

enum Field {
    case text1
}

struct ContentView: View {
    // This works fine
    @State private var showModal = false
    @State private var text1:String = ""
    @FocusState private var focusedField: Field?
    var body: some View {
        VStack {
            TextField("enter text", text: $text1)
                .focused($focusedField, equals: .text1)
                .textFieldStyle(.roundedBorder)
                .padding()
                .task {
                    focusedField = .text1
                }
            Button {
                showModal = true
            } label: {
                Text("Show modal")
            }
        }
        .sheet(isPresented: $showModal) {
            ModalSheet()
        }
    }
}

struct ModalSheet: View {
    // This does not work at all.
    @State private var text1:String = ""
    @FocusState private var focusedField: Field?
    var body: some View {
        VStack {
        TextField("enter text", text: $text1)
            .focused($focusedField, equals: .text1)
            .textFieldStyle(.roundedBorder)
            .padding()
            .task {
                focusedField = .text1
            }
            // This does not work either
            Button("Set Focus") {
                focusedField = nil
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}