Initial `.sink` or `.map` doesn't fire for optional @Published properties if they start at `nil`

If you have a
@Published var email: String? = nil or any optional that starts at nil, .sink will emit a value on iOS but not on Skip transpiled Android.

class Manager: ObservableObject {
  static let shared = Manager()
  private var subscribers: Set<AnyCancellable> = []
  private init() {
    self.$email.sink { e in
      print("New email: \(e ?? "nil")")
    }
    .store(in: &subscribers)
    
    DispatchQueue.main.async {
      self.email = nil // Emits value on both platforms
    }
  }
  @Published var email: String? = nil // Initially emits nothing on Android
}

struct AlertPlayground: View {
  
  @ObservedObject var manager = Manager.shared

Expected output (how it works on iOS:

New email: nil
New email: nil

Actual output (initially doesn't emit a value)

New email: nil

Context from Slack: https://skiptools.slack.com/archives/C078X69G8F2/p1748547032624249?thread_ts=1748494655.362589&cid=C078X69G8F2

Start at the @Published implementation and reproduce the Manager example with an optional property initialized to nil on the Skip Android target, comparing it with iOS behavior. Trace the initial subscription and the later self.email = nil assignment; done means both platforms emit "New email: nil" twice.