$ git clone -n https://src.fedoraproject.org/rpms/ocaml-lacaml.git /var/lib/mock/f42-build-3449776-45479/root/chroot_tmpdir/scmroot/ocaml-lacaml
Cloning into '/var/lib/mock/f42-build-3449776-45479/root/chroot_tmpdir/scmroot/ocaml-lacaml'...
$ git fetch origin a8f8e1da2950bae4f4485d33b0c846732cac0ea2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-lacaml
 * [new ref]         a8f8e1da2950bae4f4485d33b0c846732cac0ea2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8f8e1d Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild