$ git clone -n https://gitee.com/src-opencloudos-rpms/sane-backends.git /var/lib/mock/dist-oc9-build-121656-71722/root/chroot_tmpdir/scmroot/sane-backends
Cloning into '/var/lib/mock/dist-oc9-build-121656-71722/root/chroot_tmpdir/scmroot/sane-backends'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sane-backends
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7885b7 import sane-backends-1.1.1-10.tl4