[MU4 Issue] App crashes and doesn't ask to save when quitting via dock (MacOs)

[jessjwilliamson]

Describe the bug The app crashes and doesn't show save as dialog when quitting the app via the dock (macos)

To Reproduce Steps to reproduce the behavior:

1. Open a score
2. Make a change
3. Quit app via right click, then Quit on app icon on dock
4. See error

Expected behavior Should ask to save before quitting.

Screenshots

https://user-images.githubusercontent.com/71656189/212312557-c08bfe2a-ff79-407f-a176-17f296332bfd.mov

Platform information

• OS: MacOS