Repository: flutter
Issue: Text selection magnifier freezes, causing the TextField to prevent input after closing the keyboard on the iPad
Labels: a: text input,platform-ios,has reproducible steps,P2,found in release: 3.19,team-text-input,triaged-text-input,found in release: 3.21

### Steps to reproduce

1. Enter a few characters of text in TextField
2. Select a letter by long pressing it in the TextField
3. Press the back button on the keyboard to delete a letter
4. Close the keyboard with the down button at the bottom right of the keyboard.
5. TextField does not respond when touched

If reproduction is not possible, repeat the above process.
In my case, it was possible to reproduce it within 10 times.
If I put my mind to it, I can 100% reproduce it.

## environment
It can be reproduced on actual iOS devices.
- iPad 17.4.1 (real device)
- iPad Pro 11 (3rd gen)
- Flutter 3.19.3

### Expected results

When I touch the TextField it should be focused.

### Actual results

When I touch the TextField, nothing happens.

### Code sample

code: https://github.com/hohoins/flutter_text_field_issue/blob/main/lib/main.dart
repo: https://github.com/hohoins/flutter_text_field_issue

<details open><summary>Code sample</summary>

```dart
class BugScreen extends StatelessWidget {
  const BugScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        children: <Widget>[
          const SizedBox(height: 100),
          const Text('TextField issue'),
          const SizedBox(width: 400, child: TextField()),  // << Just adding a TextField causes bugs.
          const SizedBox(height: 50),
          ElevatedButton(
            onPressed: () {},
            child: const Text('Test button'),
          ),
        ],
      ),
    );
  }
}
```

</details>


### Screenshots or Video

<details open>
<summary>Screenshots / Video demonstration</summary>

[[Upload media here]](https://github.com/flutter/flutter/assets/3438181/5c3d5f83-677c-4f7e-a3eb-62eb7bee71ed)

</details>


### Logs

<details open><summary>Logs</summary>

```console
[Paste your logs here]
```

</details>


### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
flutter doctor -v
[✓] Flutter (Channel stable, 3.19.3, on macOS 14.3.1 23D60 darwin-arm64, locale ko-KR)
    • Flutter version 3.19.3 on channel stable at /Users/user/.fenv/versions/3.19.3
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision ba39319843 (3 weeks ago), 2024-03-07 15:22:21 -0600
    • Engine revision 2e4ba9c6fb
    • Dart version 3.3.1
    • DevTools version 2.31.1

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/user/Library/Android/sdk
    • Platform android-34, build-tools 34.0.0
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15E204a
    • CocoaPods version 1.14.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.9+0-17.0.9b1087.7-11185874)

[✓] Android Studio (version 2022.1)
    • Android Studio at /Applications/Android Studio E.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

[✓] VS Code (version 1.87.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.84.0

[✓] Connected device (4 available)
    • sdk gphone64 arm64 (mobile) • emulator-5554             • android-arm64  • Android 13 (API 33) (emulator)
    • iPad (mobile)               • 00008103-000240621A30C01E • ios            • iOS 17.4.1 21E236
    • macOS (desktop)             • macos                     • darwin-arm64   • macOS 14.3.1 23D60 darwin-arm64
    • Chrome (web)                • chrome                    • web-javascript • Google Chrome 123.0.6312.59

[✓] Network resources
    • All expected network resources are available.

• No issues found!

```

</details>