Tempo markings for dotted notes displayed differently if set when creating score

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

When setting a tempo marking with a dotted note as the beat while creating a score, a space is placed between the note duration and the dot. This space is not present if a tempo marking is inserted from the left panel, and it appears to prevent MuseScore from recognizing it as the tempo for playback.

1. Create a new score.
2. Select any combination of instruments.
3. Click "Tempo."
4. Click "Show tempo marking on score."
5. Select a dotted note for the tempo marking.
6. Click "Done."
7. Check the tempo in the top right. Is the conversion correct?
8. Select the tempo marking. There should be a space between the note and the dot.
9. Delete the space.
10. Check the tempo in the top right again.

Supporting files, videos and screenshots

Upon creating the score, there is a space between the quarter note and the dot, so the playback tempo is incorrect (dotted quarter note = 120 should mean that quarter note = 180; instead, it defaults to 120):

Removing the space fixes the playback tempo:

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

OS: Windows 11 Version 23H2 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.6.0-251490320, revision: github-musescore-musescore-1dccd0a

Regression

No.

Operating system

Windows 11

Additional context

No response

Checklist

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• 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