$ git clone -n https://gitee.com/opencloudos-stream/apt.git /var/lib/mock/dist-oc9-epol-build-90383-59047/root/chroot_tmpdir/scmroot/apt
Cloning into '/var/lib/mock/dist-oc9-epol-build-90383-59047/root/chroot_tmpdir/scmroot/apt'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/apt
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27e67e1 update