$ git clone -n https://src.fedoraproject.org/rpms/ocaml-sedlex.git /var/lib/mock/f42-build-866021-173661/root/chroot_tmpdir/scmroot/ocaml-sedlex
Cloning into '/var/lib/mock/f42-build-866021-173661/root/chroot_tmpdir/scmroot/ocaml-sedlex'...
$ git fetch origin d873c068856917b57173b3f618948cdedf14a817:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-sedlex
 * [new ref]         d873c068856917b57173b3f618948cdedf14a817 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d873c06 OCaml 5.3.0 rebuild for Fedora 42