Routemaster replace is doing push - flutter

Question

import 'package:flutter/material.dart';
import 'package:routemaster/routemaster.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
MyApp({Key? key}) : super(key: key);
late final RoutemasterDelegate _routerDelegate = RoutemasterDelegate(
routesBuilder: (context) => RouteMap(
routes: buildRoutingTable(
routerDelegate: _routerDelegate,
),
),
);
#override
Widget build(BuildContext context) => MaterialApp.router(
title: 'Flutter Demo',
theme: ThemeData(
useMaterial3: true,
colorSchemeSeed: Colors.lightGreenAccent,
),
routeInformationParser: const RoutemasterParser(),
routerDelegate: _routerDelegate,
);
}
Map<String, PageBuilder> buildRoutingTable({
required RoutemasterDelegate routerDelegate,
}) =>
{
PathConstants.tabContainerPath: () => MaterialPage(
name: 'first-screen',
child: FirstScreen(
onNavigate: () => routerDelegate.replace(
_PathConstants.secondScreen,
),
),
),
PathConstants.secondScreen: () => const MaterialPage(
name: 'second-screen',
child: SecodScreen(),
),
};
class _PathConstants {
const PathConstants.();
static String get tabContainerPath => '/';
static String get secondScreen => '${tabContainerPath}second-screen';
}
class FirstScreen extends StatelessWidget {
final VoidCallback onNavigate;
const FirstScreen({
Key? key,
required this.onNavigate,
}) : super(key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Fisrt screen'),
),
body: Center(
child: ElevatedButton(
onPressed: onNavigate,
child: const Text('Replace'),
),
),
);
}
}
class SecodScreen extends StatelessWidget {
const SecodScreen({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Second screen'),
),
);
}
}