$ git clone -n https://src.fedoraproject.org/rpms/ocaml-version.git /var/lib/mock/f38-build-side-42-init-devel-610140-26263/root/chroot_tmpdir/scmroot/ocaml-version
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-610140-26263/root/chroot_tmpdir/scmroot/ocaml-version'...
$ git fetch origin 3cdb8d7369769b56822fff5e3dd4c56c3ef28f45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-version
 * [new ref]         3cdb8d7369769b56822fff5e3dd4c56c3ef28f45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3cdb8d7 Version 3.6.1