$ git clone -n https://src.fedoraproject.org/rpms/ocaml-bisect-ppx.git /var/lib/mock/f40-build-784239-133346/root/chroot_tmpdir/scmroot/ocaml-bisect-ppx
Cloning into '/var/lib/mock/f40-build-784239-133346/root/chroot_tmpdir/scmroot/ocaml-bisect-ppx'...
$ git fetch origin f6e126c567c2d9862f3220e4e02e2c421857d331:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-bisect-ppx
 * [new ref]         f6e126c567c2d9862f3220e4e02e2c421857d331 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6e126c Rebuild for changed ocamlx hashes