$ git clone -n https://src.fedoraproject.org/rpms/ocaml-odoc.git /var/lib/mock/f38-build-side-42-init-devel-628285-26370/root/chroot_tmpdir/scmroot/ocaml-odoc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-628285-26370/root/chroot_tmpdir/scmroot/ocaml-odoc'...
$ git fetch origin e85b3d443003140672d1671747f3575629aefe4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-odoc
 * [new ref]         e85b3d443003140672d1671747f3575629aefe4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e85b3d4 Disable debuginfo generation