$ git clone -n https://src.fedoraproject.org/rpms/R-cachem.git /var/lib/mock/f38-build-725099-99548/root/chroot_tmpdir/scmroot/R-cachem
Cloning into '/var/lib/mock/f38-build-725099-99548/root/chroot_tmpdir/scmroot/R-cachem'...
$ git reset --hard 2aef28b632bcde7b873ba1e85ac5d5d25d138944
HEAD is now at 2aef28b Fix BuildRequires