$ git clone -n https://gitee.com/zhuhong_bo/dde-dock /var/lib/mock/dist-an8.9-dde-build-417182-72594/root/chroot_tmpdir/scmroot/dde-dock
Cloning into '/var/lib/mock/dist-an8.9-dde-build-417182-72594/root/chroot_tmpdir/scmroot/dde-dock'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/zhuhong_bo/dde-dock
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b52c734 update version to 5.6.22