MS4.4 crashes if mixer undocked and the user double clicks the Mixer button 2 or more times

Issue type

Crash or freeze

Description with steps to reproduce

1. Start or Restart MuseScore 4.4
2. New score / Done
3. undock mixer
4. double click the mixer button
5. double click again

Result: MuseScore usually crashes. IF not, double click another time or two.

NOTE: I was able to replicate this a dozen times in a row. Then I couldn't replicate. So after reopening MS4.4 I dragged the mixer a short distance, double-clicked the Mixer button, and again incurred the crash.

UPDATE: New alternate replication steps:

Today the crash occurred after 4 single clicks to the Mixer button

1. Start or Restart MuseScore 4.4
2. New score / Done
3. undock Mixer or move the Mixer
4. single click the mixer button 4 times

Supporting files, videos and screenshots

It's always a silent crash, so there's no diagnostic log.

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

OS: macOS 13.5, Arch.: arm64, MuseScore Studio version (64-bit): 4.4.0-242390800, revision: github-musescore-musescore-0fcd11b

Regression

No.

Operating system

Mac OS 13.5.2

Additional context

No response

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