$ git clone -n https://src.fedoraproject.org/rpms/polymake.git /var/lib/mock/f40-build-780707-131173/root/chroot_tmpdir/scmroot/polymake
Cloning into '/var/lib/mock/f40-build-780707-131173/root/chroot_tmpdir/scmroot/polymake'...
$ git reset --hard 66e5d3d2e7c1377993015ae60590520db0e8ef44
HEAD is now at 66e5d3d Adjust sed expressions to fix FTBFS