$ git clone -n https://src.fedoraproject.org/rpms/ocaml-mysql.git /var/lib/mock/f43-build-side-114891-61011599-6587666/root/chroot_tmpdir/scmroot/ocaml-mysql
Cloning into '/var/lib/mock/f43-build-side-114891-61011599-6587666/root/chroot_tmpdir/scmroot/ocaml-mysql'...
$ git fetch origin d2168533b00180fa5db33a8beca690c911d4aa3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-mysql
 * [new ref]         d2168533b00180fa5db33a8beca690c911d4aa3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d216853 Rebuild to fix OCaml dependencies