Ok, the fix was merged here:
… and I just updated the LBT 1.9 installer.gh on Food4Rhino with the fixed component.
So all that you have to do is re-download the LBT 1.9 installer and run it (or use the LB Versioner component). Then you will have version 1.9.1 of the “Model To OSM” component that has the fix:
I really should have checked this topic 3 days ago as I was finalizing everything for the release.