$ git clone -n https://gitee.com/wenyuzifang/ldns.git /var/lib/mock/dist-an23-build-462592-73799/root/chroot_tmpdir/scmroot/ldns
Cloning into '/var/lib/mock/dist-an23-build-462592-73799/root/chroot_tmpdir/scmroot/ldns'...
$ git fetch origin 64a142fc0e1f0286fd689d083fb8c4334d792ade:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/ldns
 * [new ref]         64a142fc0e1f0286fd689d083fb8c4334d792ade -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64a142f Update code from upstream