Can't enter Double Sharp or Double Flat in Braille Panel with 6-key entry

Issue type

Accessibility issue (e.g. for keyboard-only or screen reader users)

Description with steps to reproduce

In the Braille Panel it is not currently possible to write a double sharp or double flat using 6-key Braille entry.

STEPS:

1. On a blank score enter a Middle C double sharp semibreve/whole note and see that on the Braille panel this is displayed correctly as dots 146, 146, 5, 13456. which is two sharp signs followed by octave 4 sign, then C semibreve.
2. Move to a blank bar on the score and press N for note input mode.
3. Tab to the Braille panel.
4. Pres the above dot sequence using 6 key entry: fjl fjl k fsjkl.
5. Expected result is a Middle C double sharp semibreve is written on the score, sounded and either immediately or after pressing an arrow key (depending on whether Braille is refreshing correctly) the dot pattern is shown the same as in Step 1.
6. Actual result - Nothing is entered.
7. Repeat steps 1-4 using D4 double flat semibreve, dot pattern 126, 126, 5, 1356, keys fdl fdl k fskl.
8. Again no notes are entered.

Supporting files, videos and screenshots

N/A

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

4.5.1

Regression

No.

Operating system

Windows 11

Additional context

Using NVDA screen reader

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