Grouping-column-settings of value relations are lost during export of project

[koenigherford]

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What is the bug or the crash? What were your expectations and what actually happened?

Grouping-column-settings in value-relations are lost during export of project. (additionally column-comments are lost). As a result grouping of value relations is not available in QField any longer.

Seems to be a regression. Did not happen weeks before.

See screenshot

Steps to reproduce the issue

see above

QGIS version

3.42.3-Münster

QFieldSync Version

4.17.3

Operating system name

Windows

Operating system version

Windows 11

Reinstall QFieldSync

• [x] I have a fresh install of the latest QFieldSync version on a new QGIS profile, but the problem persists.
• [ ] Problem can be reliably reproduced, doesn't happen randomly.
• [ ] Problem happens with all files and projects, not only some files or projects.

Additional context

No response