$ git clone -n https://src.fedoraproject.org/rpms/ocaml-camlimages.git /var/lib/mock/f42-build-865667-173376/root/chroot_tmpdir/scmroot/ocaml-camlimages
Cloning into '/var/lib/mock/f42-build-865667-173376/root/chroot_tmpdir/scmroot/ocaml-camlimages'...
$ git fetch origin 15f815a106e2236141520904699b1cf2213699d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-camlimages
 * [new ref]         15f815a106e2236141520904699b1cf2213699d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15f815a OCaml 5.3.0 rebuild for Fedora 42