$ git clone -n https://gitee.com/wency_cn/unbound_1770892962.git /var/lib/mock/dist-an23-build-514174-75110/root/chroot_tmpdir/scmroot/unbound_1770892962
Cloning into '/var/lib/mock/dist-an23-build-514174-75110/root/chroot_tmpdir/scmroot/unbound_1770892962'...
$ git fetch origin a4b3f112c0aad8dfa479376fc96088203042faf3:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/unbound_1770892962
 * [new ref]         a4b3f112c0aad8dfa479376fc96088203042faf3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4b3f11 Update code from upstream