$ git clone -n https://src.fedoraproject.org/rpms/not-ocamlfind.git /var/lib/mock/f39-build-1911447-42872/root/chroot_tmpdir/scmroot/not-ocamlfind
Cloning into '/var/lib/mock/f39-build-1911447-42872/root/chroot_tmpdir/scmroot/not-ocamlfind'...
$ git fetch origin 7d913da4f34b20732f98b2a2925a2ce40239766d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/not-ocamlfind
 * [new ref]         7d913da4f34b20732f98b2a2925a2ce40239766d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d913da Rebuild for ocaml-ocamlgraph 2.1.0