$ git clone -n https://src.fedoraproject.org/rpms/ocaml-sha.git /var/lib/mock/f42-build-865911-173583/root/chroot_tmpdir/scmroot/ocaml-sha
Cloning into '/var/lib/mock/f42-build-865911-173583/root/chroot_tmpdir/scmroot/ocaml-sha'...
$ git fetch origin 9ec6fd80c6e29f09cbf4acc2c145ac0dbb8b0749:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-sha
 * [new ref]         9ec6fd80c6e29f09cbf4acc2c145ac0dbb8b0749 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ec6fd8 OCaml 5.3.0 rebuild for Fedora 42