[TablEdit import] measures with gaps in voice 1 imported as corrupt

[lvinken]

Issue type

Import/export

Description with steps to reproduce

Import gaps_2.tef (from attached zip file)
Actual behaviour: all measures (containing note patterns commonly found in tablEdit files)are reported as corrupt
Expected behaviour: gaps in voice 1 filled, no corruption reported

Supporting files, videos and screenshots

gaps_2.zip

In which versions of MuseScore Studio is this issue present?

master commit 89df41e

Regression

No.

Operating system

macOS 15

Additional context

Will provide a pull request

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