Enabling Onion Skinning breaks Audio in Animation track

[VansonLeung]

Godot version

4.2.beta.custom_build [51f81e1]

System information

macOS 11.0+

Issue description

I found another new issue when starting onion skinning while having put any audio into my animation track.

cd.mp4

Steps to reproduce

1. Put a "playing = true" key of any MP3 audio into a Animation track
2. Enable onion skinning

cd.mp4

3. To temporarily dismiss the bugged audio, put a "playing = false" key of the same audio animation track just after the previous key
4. Enable onion skinning

soln.mp4

Minimal reproduction project

gd_anim_unittest_1.zip

[VansonLeung]

By referring to:

#83436

@KoBeWi corrected me the proper practice when adding audio tracks into animation.

By following that proper practice, this bug may not be reproducible.

@RandomShaper @akien-mga We may close this issue upon your decisions.

Sorry for any confusion caused.