The cmd + left/right arrow shortcut is able to jump between lines in Flutter, but when using TextEdit on Mac, the cursor stops at the beginning/end of the line and isn't able to change lines.

Steps to reproduce

1. Run an app with a multi-line text field, such as the one below, on a Mac.
2. Type a few lines of text and put the cursor at the end.
3. Hold the cmd key and press the left arrow twice.

Expected results: When doing this in TextEdit, the second keypress has no effect. The first one moves the cursor to the start of the last line, and the second one does nothing.

Actual results: The cursor moves to the start of the second to last line.

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: Scaffold(
        appBar: AppBar(
          title: Text('Flutter Demo'),
        ),
        body: Center(
          child: TextField(
            maxLines: 5,
          ),
        ),
      ),
    );
  }
}