$ git clone -n https://gitee.com/wency_cn/libburn.git /var/lib/mock/dist-an23-build-502147-74794/root/chroot_tmpdir/scmroot/libburn
Cloning into '/var/lib/mock/dist-an23-build-502147-74794/root/chroot_tmpdir/scmroot/libburn'...
$ git fetch origin 646dce748d4ac584f5e28a342250411b21dde569:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libburn
 * [new ref]         646dce748d4ac584f5e28a342250411b21dde569 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 646dce7 Update code from upstream