$ git clone -n https://src.fedoraproject.org/rpms/ocaml-yaml.git /var/lib/mock/f39-build-1643159-40227/root/chroot_tmpdir/scmroot/ocaml-yaml
Cloning into '/var/lib/mock/f39-build-1643159-40227/root/chroot_tmpdir/scmroot/ocaml-yaml'...
$ git fetch origin 97104b80c4a3de9e7d9cf9282bbc96ca57955f90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-yaml
 * [new ref]         97104b80c4a3de9e7d9cf9282bbc96ca57955f90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97104b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild