xml import: pickup bars and danish lyrics

Issue type

Import/export issue

Description with steps to reproduce

1. Open the attached xml, which contains a pickup bar (1 beat) and i pickup bar again in measure 9 (1 beat). It also contains danish lyrics with letter ø and å.
2. Compare the attached images. The picture from Sibelius is the same xml, imported into Sibelius. This is how the score should look.
   I have marked the relevant places with red circles.

Supporting files, videos and screenshots

Pickup bars and danish lyrics.xml.zip

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

4.4.1

Regression

I was unable to check

Operating system

Mac OS 14.4.1, maybe others

Additional context

Origin of xml is lesser known notation software Primus (www.columbussoft.de). Even though xml might not be a fixed standard, it would be nice, if Musescore could handle the pickup bars correct.

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 importing the attached “Pickup bars and danish lyrics.xml.zip” in MuseScore 4.4.1 and compare the pickup bars and Danish lyrics with the supplied Sibelius image. Trace the XML import entry point for measure pickup handling and lyric characters; done means both pickup bars and the ø/å lyrics render as shown in the reference.