$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zarith.git /var/lib/mock/f32-ocaml-119715-36674/root/chroot_tmpdir/scmroot/ocaml-zarith
Cloning into '/var/lib/mock/f32-ocaml-119715-36674/root/chroot_tmpdir/scmroot/ocaml-zarith'...
$ git reset --hard af431b221a14c014b71f63966e3b0bfe37a009ca
HEAD is now at af431b2 Bump release and rebuild.