Copy/Paste commands (both from the "Edit" menu and keyboard shortcuts) don't work in the "Save score" dialog

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

Notes:

• Not sure if it's a general issue or macOS-only.
• I am aware of other open tickets regarding shortcuts being broken in some cases, but in this case, the commands from the "Edit" menu don't work either.
• This is not a regression – it never worked. It's just that my annoyance level with this bug reached its limit, so I decided to report it. :)

Desctiption:

• Copy/paste from the clipboard (from the app menu, as well as Cmd-C / Cmd-V / Cmd-X shortcuts) doesn't work in the "Save score" dialog.
• The system clipboard works, though – in the same dialog, you can open the system popup by right-clicking, and "Cut" / "Copy" / "Paste" work just fine from there.
• As far as I can tell, MuseScore is the only app on macOS that has this issue in the "Save" dialog – I have never encountered this anywhere else.

Repro

1. Create a new project in MuseScore.
2. Make sure that some text is copied to the clipboard (e.g., select some text in MuseScore itself and use its "Copy" function from the "Edit" menu).
3. Click "File" > "Save" > "Save to computer".
4. Press Cmd-V or select "Paste" from the "Edit" menu.

Expected

• The previously copied text is pasted into the file name field.

Actual

• Nothing happens.

You can also verify that the copied text is still in the clipboard by clicking "Paste" in the right-click system popup menu or by trying to paste it anywhere in MuseScore after closing the "Save" dialog.

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/ea540168-343a-4c5b-8840-6c810d7c7d93

In which versions of MuseScore Studio is this issue present?

4.7.4-260706075, revision: github-musescore-musescore-7688c00

Regression

Choose option...

Operating system

macOS Tahoe (26.5.2)

Additional context

https://github.com/user-attachments/assets/0d091e01-8adc-4bff-9f36-d85b5f6d081a

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

Start by locating the Save score dialog and its file-name field, then inspect how Edit-menu commands and keyboard shortcuts are routed there on macOS. Reproduce the issue with the provided steps; the work is done when Copy, Paste, and Cut work from both the Edit menu and Cmd-C/Cmd-V/Cmd-X, while the system context menu continues to work.