$ git clone -n https://src.fedoraproject.org/rpms/ocaml-pp.git /var/lib/mock/f45-build-20616-572/root/chroot_tmpdir/scmroot/ocaml-pp
Cloning into '/var/lib/mock/f45-build-20616-572/root/chroot_tmpdir/scmroot/ocaml-pp'...
$ git fetch origin 25c4c09d896c335ba95ae810d8875dc1addfc341:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-pp
 * [new ref]         25c4c09d896c335ba95ae810d8875dc1addfc341 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25c4c09 OCaml 5.5.1 rebuild