mostly to catch stuff from the flatten work, but I think this looks good in general Change-Id: I7be5b7bcf1f3d9f980c748ba20793965cef957e7 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92493 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Separate process and thread for progress bars, etc.