$ git clone -n https://src.fedoraproject.org/rpms/ocaml-camlimages.git /var/lib/mock/f31-build-75957-31347/root/chroot_tmpdir/scmroot/ocaml-camlimages
Cloning into '/var/lib/mock/f31-build-75957-31347/root/chroot_tmpdir/scmroot/ocaml-camlimages'...
$ git reset --hard db23d54bb9ceeb2a97c5d17c3acaad7baa264ad5
HEAD is now at db23d54 OCaml 4.08.1 (rc2) rebuild.