$ git clone -n https://src.fedoraproject.org/rpms/ocaml-dune.git /var/lib/mock/eln-build-side-110366-58907933-6569192/root/chroot_tmpdir/scmroot/ocaml-dune
Cloning into '/var/lib/mock/eln-build-side-110366-58907933-6569192/root/chroot_tmpdir/scmroot/ocaml-dune'...
$ git fetch origin 44d69f6b11f17519626032a43af79db51beac6d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-dune
 * [new ref]         44d69f6b11f17519626032a43af79db51beac6d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44d69f6 Version 3.18.1