$ git clone -n https://gitee.com/wenyuzifang/sscg.git /var/lib/mock/dist-an23-build-486784-74383/root/chroot_tmpdir/scmroot/sscg
Cloning into '/var/lib/mock/dist-an23-build-486784-74383/root/chroot_tmpdir/scmroot/sscg'...
$ git fetch origin 435c41f18fa32167e5a01765056a77ec96789d08:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/sscg
 * [new ref]         435c41f18fa32167e5a01765056a77ec96789d08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 435c41f Update code from upstream