$ git clone -n https://gitee.com/xzyang-anolis/docker.git /var/lib/mock/dist-an7_9-updates-build-374892-71650/root/chroot_tmpdir/scmroot/docker
Cloning into '/var/lib/mock/dist-an7_9-updates-build-374892-71650/root/chroot_tmpdir/scmroot/docker'...
$ git fetch origin a30f3091033549a011eeb7c83927f0b7129c433d:KOJI_FETCH_HEAD
From https://gitee.com/xzyang-anolis/docker
 * [new ref]         a30f3091033549a011eeb7c83927f0b7129c433d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a30f309 Update to docker-1.13.1-210.git7d71120.el7_9