$ git clone -n https://src.fedoraproject.org/rpms/ocaml-qtest.git /var/lib/mock/f38-build-side-42-init-devel-715513-27290/root/chroot_tmpdir/scmroot/ocaml-qtest
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-715513-27290/root/chroot_tmpdir/scmroot/ocaml-qtest'...
$ git fetch origin 20a2e85988200fc925889f4763b1ab0b7759b45b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-qtest
 * [new ref]         20a2e85988200fc925889f4763b1ab0b7759b45b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20a2e85 Rebuild OCaml packages for F38