Set duration: double whole note shortcut (8) does not work

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. verify in preferences that "set duration: double whole note" is set to 8; Num 8 (default setting)
2. choose a written note in a project
3. press 8
4. see that duration of note is not updated; works fine for Numpad 8 though
5. repeat step 2 + in step 3 press another number and see that the correct note length is chosen

Expected behaviour:
keyboard 8 should update the selected note to a double whole note; as the other numbers do for the corresponding other note lengths

Supporting files, videos and screenshots

Notice that pressing 8 on the keyboard doesn't do anything.

Pressing 8 on the numpad yields

For other numbers (note lengths 1-7 and 9) both the number and the numpad work.
In the latest nightly build (MuseScore-Studio-Nightly-latest-4.7-x86_64.dmg) 8 and 9 do both not work.

In which versions of MuseScore Studio is this issue present?

4.1.0 - 4.6.5 (and 4.7)

Regression

Choose option...

Operating system

macOS Tahoe 26.2 (25C56)

Additional context

macOS Tahoe (26.2), Arch.: arm64, MuseScore Studio version (64-bit): 4.6.5-253511702, revision: github-musescore-musescore-653f38d

Yes, I've verified that the 8 and 9 keys on my keyboard (and the numpad 8 and 9 key) both work.

Oldest confirmed version
OS: macOS 26.3, Arch.: x86_64, MuseScore version (64-bit): 4.1.0-231921401, revision: github-musescore-musescore-2e3a93a-

Latest confirmed version
OS: macOS Tahoe (26.3), Arch.: arm64, MuseScore Studio version (64-bit): 4.6.5-253511702, revision: github-musescore-musescore-653f38d

and with the additional caveat that the 9 also doesn't work anymore:
MuseScore-Studio-Nightly-latest-4.7-x86_64.dmg

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 reproducing the shortcut behavior described on macOS with the duration set to 8, then compare the regular number-key and numpad paths for durations 8 and 9. Done means the regular keyboard keys update the selected note consistently with the other duration shortcuts, while the reported versions and platforms remain covered by verification.