Ties missing when overwriting existing note in note-entry mode

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Create a long note (eg whole note) and select it
2. Enter note-entry mode ("N")
3. Choose a short note (eg 32nd note) length
4. Add note

Expected: New note added. Old note reduced by that length, using ties.

Actual: New note added. Notes are created to replace the old note, but no ties.

Supporting files, videos and screenshots

In which versions of MuseScore Studio is this issue present?

4.7, also main

Regression

The same behavior in MuseScore 3.6.2

Operating system

macOS

Additional context

No response

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 issue in MuseScore Studio 4.7 or main using the listed whole-note and 32nd-note steps. Start by tracing note-entry mode's handling of replacing a selected note and compare the result with the expected duration split. Done means the replacement creates the required tied notes while preserving the old note's remaining duration.