$ git clone -n https://src.fedoraproject.org/rpms/R-haven.git /var/lib/mock/f38-build-718918-96773/root/chroot_tmpdir/scmroot/R-haven
Cloning into '/var/lib/mock/f38-build-718918-96773/root/chroot_tmpdir/scmroot/R-haven'...
$ git reset --hard d81a17e2c9e257d1178c631345fda9e22678988a
HEAD is now at d81a17e R-maint-sig mass rebuild