$ git clone -n https://gitee.com/opencloudos-stream/sane-backends.git /var/lib/mock/dist-ocs23-build-47456-2059/root/chroot_tmpdir/scmroot/sane-backends
Cloning into '/var/lib/mock/dist-ocs23-build-47456-2059/root/chroot_tmpdir/scmroot/sane-backends'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/sane-backends
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ea4ad4 !2 Rebuilt for v4l-utils 1.24.1 Merge pull request !2 from kianli/master