$ git clone -n https://gitee.com/wency_cn/libburn.git /var/lib/mock/dist-an23-build-492429-74553/root/chroot_tmpdir/scmroot/libburn
Cloning into '/var/lib/mock/dist-an23-build-492429-74553/root/chroot_tmpdir/scmroot/libburn'...
$ git fetch origin 00c518b8211d9341e498287669bfea79e565ebc0:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libburn
 * [new ref]         00c518b8211d9341e498287669bfea79e565ebc0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00c518b Update code from upstream