Navigate out from CupertinoTabScaffold

I have an App with a LoginScreen that goes to the HomeScreen after a success login. I use this code below to replace the widget and start a new navigation Stack:

Navigator.pushReplacement(
    context,
    CupertinoPageRoute(
      builder: (context) => HomeScreen(),
    ),
  );

The HomeScreen is a CupertinoTabScaffold with 2 CupertinoTabViews.

The second CupertinoTabView contain a Widget that has a logout button.

After a success logout I want to remove the HomeWidget, and go to LoginScreen.

Using

Navigator.pushReplacement(
    context,
    CupertinoPageRoute(
      builder: (context) => LoginScreen(),
    ),
  );

in a Widget inside the second CupertinoTabView only reset its navigation, and the LoginScreen appears inside the second CupertinoTabView.

What I want is some code to remove my HomeScreen and start a new Navigation stack with the LoginScreen.

Found solution from the official FlutterGallery source code. This will navigate route to root.

https://github.com/flutter/flutter/blob/master/examples/flutter_gallery/lib/demo/cupertino/cupertino_navigation_demo.dart#L122

Navigator.of(context, rootNavigator: true).pop();