$ git clone -n https://gitee.com/lizhao2025/tang.git /var/lib/mock/dist-an23-build-497469-74608/root/chroot_tmpdir/scmroot/tang
Cloning into '/var/lib/mock/dist-an23-build-497469-74608/root/chroot_tmpdir/scmroot/tang'...
$ git fetch origin ff4d93b681769204b706a453dc2f044a383febd4:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/tang
 * [new ref]         ff4d93b681769204b706a453dc2f044a383febd4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff4d93b Update code from upstream