$ git clone -n https://gitee.com/zhaojun_chao/ocaml.git /var/lib/mock/dist-an23-build-306728-67065/root/chroot_tmpdir/scmroot/ocaml
Cloning into '/var/lib/mock/dist-an23-build-306728-67065/root/chroot_tmpdir/scmroot/ocaml'...
$ git fetch origin 69121e4ef39db857a938627ebc124f2e43faed88:KOJI_FETCH_HEAD
From https://gitee.com/zhaojun_chao/ocaml
 * [new ref]         69121e4ef39db857a938627ebc124f2e43faed88 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 69121e4 fix Reloc overflow error