Sample code demonstrating back navigation bug in Flutter 1.10.5

page_navigation_bug.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Cupertino Page Transition test'),
      ),
      body: ListView(
        children: List.generate(
          40,
          (int index) {
            return ListTile(
              title: Text('Item $index'),
              onTap: () => Navigator.of(context).push(CupertinoPageDemo.route()),
            );
          },
        ),
      ),
    );
  }
}

class CupertinoPageDemo extends StatelessWidget {
  static Route<dynamic> route() {
    return CupertinoPageRoute(
      builder: (BuildContext context) {
        return CupertinoPageDemo();
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: const Text('Second Page'),
      ),
    );
  }
}