FB9762603: TextField with NumberFormatter() is broken on macOS 12 - no values

FB9762603.swift

/*
16 November 2021

SwiftUI.TextField used with NumberFormatter() as a formatter does not set/update value on macOS 12 (Monterey). This is regression as it works ok on macOS 11 (BigSur)

Please find attached Playground code and code screenshot with marked bug

Related FB9180913. Reported June 15.
*/

import SwiftUI
import PlaygroundSupport

struct SampleNumberFormatter: View {
    @State var message: String = "123"
    @State var number: Int = 123
    @State var number2: CGFloat = 123

    var body: some View {
        HStack {

            // macOS 11 API
            // OK in macOS 11, Broken on macOS 12
            TextField("000",
                value: $number2, // Here value does not update on edit
                formatter: NumberFormatter()
            )

            // macOS 12 API
            // OK
            TextField("000",
                      value: $number,
                      format: .number
            )
        }
        .frame(width: 100)
    }
}



struct SampleTextFormatter: View {
    @State var message: String = "123"

    var body: some View {
        HStack {

            TextField("000",
                value: $message, // Properly set initial value
                formatter: TextFormatter()
            )
        }
        .frame(width: 100)
    }

    // Custom dummy formatter
    class TextFormatter: Formatter {
        override func string(for obj: Any?) -> String? {
            obj as? String
        }

        override func getObjectValue(_ obj: AutoreleasingUnsafeMutablePointer<AnyObject?>?, for string: String, errorDescription error: AutoreleasingUnsafeMutablePointer<NSString?>?) -> Bool {
            obj?.pointee = string as AnyObject
            return true
        }
    }
}


PlaygroundPage.current.setLiveView(SampleNumberFormatter())