$ git clone -n https://src.fedoraproject.org/rpms/R-units.git /var/lib/mock/f38-build-710455-93502/root/chroot_tmpdir/scmroot/R-units
Cloning into '/var/lib/mock/f38-build-710455-93502/root/chroot_tmpdir/scmroot/R-units'...
$ git reset --hard c15b17fef75fe45f0dc90a1d3e1c2385003a7b41
HEAD is now at c15b17f Update to 0.8-2