ondselsolver is packaged for FreeCAD and therefor should follow the
version the last released FreeCAD version required.
(this might not always the "newest" version of ondselsolver!)

Uscan won't work in this scenario, use in the upstream repo:
  git archive --format=tar --prefix=ondselsolver/ <commit-hash> | xz ondselsolver_0~<date>.<hash>.orig.tar.xz
to craft the tarball.
