$ git clone -n https://src.fedoraproject.org/rpms/R-expm.git /var/lib/mock/f33-build-328927-58129/root/chroot_tmpdir/scmroot/R-expm
Cloning into '/var/lib/mock/f33-build-328927-58129/root/chroot_tmpdir/scmroot/R-expm'...
$ git reset --hard 7ae7e1aa5dd01a286b725147aa70ecdcb59f4cff
HEAD is now at 7ae7e1a 0.999-5