The audio service should stop on a hot restart

[hacker1024]

Describe the bug
When doing a hot restart, the audio service keeps running. This causes problems when starting it again.

Furthermore, I use isolate nameservers to send complex objects to my service. After a hot restart, these become null, leading the service to crash.

Minimal reproduction project
It happens in the example too.

To Reproduce
Steps to reproduce the behavior:

1. Run the service
2. Run a hot restart
3. Observe

Expected behavior
The service should stop on a hot restart.

Runtime Environment (please complete the following information if relevant):

• Device: Xiaomi Redmi K20 Pro
• Android version: 10 (Evolution X | Custom ROM)
• iOS version: Not tested

Flutter SDK version
(It doesn't detect EAP plugins, for some reason)

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, v1.12.13+hotfix.9, on Mac OS X 10.15.4 19E266, locale en-AU)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.4)
[!] Android Studio (not installed)
[!] IntelliJ IDEA Ultimate Edition (version 2020.1 RC)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] Connected device (1 available)

! Doctor found issues in 2 categories.

Additional context
I'm not very experienced with isolates. I suspect that the bug's not really this plugin's fault, but it's be nice if we can find a workaround.

[hacker1024]

This was briefly discussed in #214, but this is a slightly different issue.
A hot reload's fine, because that preserves state.

[hacker1024]

Oops, it's fixed in Flutter master.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs, or use StackOverflow if you need help with audio_service.