Picker style .menu doesn't handle nil

Here's the code...

import SwiftUI

enum Side: String {
    case left
    case right
}

struct SideView: View {
    @State private var name: String = ""
    @State private var side: Side? = nil

    var body: some View {
        NavigationStack {
            Form {
                Section {
                    TextField("Name", text: $name)
                    Picker("Side", selection: $side) {
                        Text("Left").tag(Side.left as Side?)
                        Text("Right").tag(Side.right as Side?)
                    }
                    .pickerStyle(.menu) // displays with "Left" selected even though side is nil
//                    .pickerStyle(.inline) // all the other styles work as expected, nothing initially selected
//                    .pickerStyle(.palette)
//                    .pickerStyle(.navigationLink)
                }
            }
        }
    }
}

#Preview("SideView") {
    SideView()
}

Even though side is nil the .menu style displays with "Left" selected. Try any of the other styles. They all display with nothing initially selected. As they should when side is nil.

This seems like a bug and I've submitted feedback. ID: FB21685273

Whether it's a bug or not has anyone worked around this?