TextField suffix iconButton onpressed also triggers ontap of TextField

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Material App',
      theme: ThemeData.dark(),
      home: Home(),
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Material App Bar'),
      ),
      body: Center(
        child: TextField(
          onTap: () => print('TextField onTap'),
          decoration: InputDecoration(
              suffixIcon: IconButton(
                  icon: Icon(Icons.arrow_forward_ios),
                  onPressed: () => print('suffixIcon pressed'))),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.add),
        onPressed: () {},
      ),
    );
  }
}