Text frames do not accept "special characters" until subsequent edit

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Add a text frame to a score
2. Double click it to edit
3. Press Shift+F2 to open Special characters
4. Click copyright symbol (or any non-musical symbol)

Result: symbol is not entered. I see some messages printed to console: "EngravingFont::draw | invalid sym: 2975", suggesting it is trying to add the symbols from the music font instead of the text font. And sure enough, music symbols work.

From that point:

5. Enter some normal text
6. Press Esc
7. Double click the text to edit it again
8. Press Shift+F2 again
9. Click copyright symbol again

Now it works. So the issue seems to be that until you've actually entered some text, the code doesn't "know" it is editing text. It has also been reported that while in that messed-up state, Alt+Num+0169 on Windows doesn't work either and gives you an error about no note or rest selected.

Supporting files, videos and screenshots

Screen recording 2024-12-01 10.25.20 AM.webm

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

OS: Debian GNU/Linux 12 (bookworm), Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.4-243360404, revision: github-musescore-musescore-d99f6ab

Regression

No.

Operating system

Debian 12

Additional context

Surprisingly to me, this was also broken in MU3 but apparently went unnoticed.

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

Reproduce the text-frame workflow with Shift+F2 and compare the first symbol insertion with insertion after normal text has been entered. Trace the text-editing and special-character entry path, including the reported EngravingFont::draw message; done means symbols work immediately in a newly created text frame without console errors or incorrect selection errors.