$ git clone -n https://src.fedoraproject.org/rpms/ocaml-libvirt.git /var/lib/mock/f45-build-20609-572/root/chroot_tmpdir/scmroot/ocaml-libvirt
Cloning into '/var/lib/mock/f45-build-20609-572/root/chroot_tmpdir/scmroot/ocaml-libvirt'...
$ git fetch origin 29e12a88c9be7adae1a3718caf364ec496f918cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-libvirt
 * [new ref]         29e12a88c9be7adae1a3718caf364ec496f918cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29e12a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild