$ git clone -n https://gitee.com/wenyuzifang/libburn.git /var/lib/mock/dist-an23-build-469275-74027/root/chroot_tmpdir/scmroot/libburn
Cloning into '/var/lib/mock/dist-an23-build-469275-74027/root/chroot_tmpdir/scmroot/libburn'...
$ git fetch origin 2db1fce36eee2d28209c5006608cba0338a159a9:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/libburn
 * [new ref]         2db1fce36eee2d28209c5006608cba0338a159a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2db1fce Update code from upstream