Compare @FocusState will trigger change of it's value

I found a weird problem when I use @FocusState.

I need to compare the value of @FocusState and display different View. But I found that compare @FocusState will trigger a change of it's value.

The code **** will display two list of buttons. When you select the 2 button in the first list, the right button will display. When I try to move to the right button, the focus will jump to the 1 button in the first list. The reason is focused was changed to 1 when I try to jump to the right button(the value of focused will be nil and then 1).

And if I remove the compare code(if focused == 2), it will work fine.

I am currently using Xcode beta 6. Not sure if it is a bug in beta version.

struct Demo: View {
    @FocusState var focused: Int?

    var body: some View {
        HStack {
            List {
                ForEach((1...10), id: \.self) { number in
                    Button {
                        
                    } label: {
                        Text("\(number)")
                    }
                    .focused($focused, equals: number)
                }
            }
            List {
                if focused == 2 {
                    Button {
                        
                    } label: {
                        Text("Button")
                    }
                }
            }
        }
    }
}