SwiftUI NavigationLink pops out by itself

I have a simple use case where a screen pushes another screen using the NavigationLink. There is a strange behaviour iOS 14.5 beta where the pushed screen is popped just after being pushed.

I manage to create a sample app where I reproduce it. I believe the cause is the presence of @Environment(\.presentationMode) that seem to re-create the view and it causes the pushed view to be popped.


The exact same code works fine in Xcode 12 / iOS 14.4



Here is a sample code.

Code Block swift
import SwiftUI
public struct FirstScreen: View {
  public init() {}
  public var body: some View {
    NavigationView {
      List {
        row
        row
        row
      }
    }
  }
  private var row: some View {
    NavigationLink(destination: SecondScreen()) {
      Text("Row")
    }
  }
}
struct SecondScreen: View {
  @Environment(\.presentationMode) var presentationMode: Binding<PresentationMode>
  public var body: some View {
    VStack(spacing: 10) {
      NavigationLink(destination: thirdScreenA) {
        Text("Link to Third Screen A")
      }
      NavigationLink(destination: thirdScreenB) {
        Text("Link to Third Screen B")
      }
      Button("Go back", action: { presentationMode.wrappedValue.dismiss() })
    }
  }
  var thirdScreenA: some View {
    Text("thirdScreenA")
  }
  var thirdScreenB: some View {
    Text("thirdScreenB")
  }
}
struct FirstScreen_Previews: PreviewProvider {
  static var previews: some View {
    FirstScreen()
  }
}