$ git clone -n https://src.fedoraproject.org/rpms/ocaml-caml-mode.git /var/lib/mock/f45-build-20484-571/root/chroot_tmpdir/scmroot/ocaml-caml-mode
Cloning into '/var/lib/mock/f45-build-20484-571/root/chroot_tmpdir/scmroot/ocaml-caml-mode'...
$ git fetch origin a865276ccae48b2792a4d2d137a591e965e3ea53:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-caml-mode
 * [new ref]         a865276ccae48b2792a4d2d137a591e965e3ea53 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a865276 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild