Percussion panel - reset layout doesn't work with Muse Sounds drumsets

[mathesoncalum]

Issue type

UI bug (incorrect info or interface appearance)

Description with steps to reproduce

1. Create a score with a percussion instrument
2. Switch to a Muse Sounds drumset in the mixer
3. Click Layout -> Reset layout in the percussion panel toolbar
4. Layout is incorrect

Supporting files, videos and screenshots

resetlayout.mov

What is the latest version of MuseScore Studio where this issue is present?

Master

Regression

No.

Operating system

All

Additional context

I am reasonably certain that the cause of this is PercussionPanelModel::resetLayout using the current Instrument's ID to resolve an InstrumentTemplate. This is a problem because the ID won't necessarily correlate to the sound chosen in the mixer.

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible