$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zarith.git /var/lib/mock/f31-build-64630-29590/root/chroot_tmpdir/scmroot/ocaml-zarith
Cloning into '/var/lib/mock/f31-build-64630-29590/root/chroot_tmpdir/scmroot/ocaml-zarith'...
$ git reset --hard bab3abd91a7419f933b0d8cc3211d36356a36f38
HEAD is now at bab3abd - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild