$ git clone -n https://gitee.com/wency_cn/unbound_1772014536.git /var/lib/mock/dist-an23-build-514887-75118/root/chroot_tmpdir/scmroot/unbound_1772014536
Cloning into '/var/lib/mock/dist-an23-build-514887-75118/root/chroot_tmpdir/scmroot/unbound_1772014536'...
$ git fetch origin 7974935c6823710b9a612a717a773ee2f9d182b6:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/unbound_1772014536
 * [new ref]         7974935c6823710b9a612a717a773ee2f9d182b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7974935 Update code from upstream