$ git clone -n https://gitee.com/src-opencloudos-rpms/sane-backends.git /var/lib/mock/dist-oc9-build-100042-60701/root/chroot_tmpdir/scmroot/sane-backends
Cloning into '/var/lib/mock/dist-oc9-build-100042-60701/root/chroot_tmpdir/scmroot/sane-backends'...
$ git fetch origin debc10a6c289a9b31b4072a3cc051991e69cac9b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sane-backends
 * [new ref]         debc10a6c289a9b31b4072a3cc051991e69cac9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at debc10a import sane-backends-1.1.1-8.tl4