$ git clone -n https://src.fedoraproject.org/rpms/R-udunits2.git /var/lib/mock/f37-build-641573-71972/root/chroot_tmpdir/scmroot/R-udunits2
Cloning into '/var/lib/mock/f37-build-641573-71972/root/chroot_tmpdir/scmroot/R-udunits2'...
$ git reset --hard 5845f220c7d52429d9caa07e44167c7596f8d9b4
HEAD is now at 5845f22 update to 0.13.2.1, rebuild for R 4.2.1