$ git clone -n https://gitee.com/wency_cn/ldns.git /var/lib/mock/dist-an23-build-501989-74794/root/chroot_tmpdir/scmroot/ldns
Cloning into '/var/lib/mock/dist-an23-build-501989-74794/root/chroot_tmpdir/scmroot/ldns'...
$ git fetch origin ce09e2a9e97493d337722c954c644adc3e8cb94a:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/ldns
 * [new ref]         ce09e2a9e97493d337722c954c644adc3e8cb94a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce09e2a Update code from upstream