$ git clone -n https://gitee.com/wency_cn/unbound_1767786503.git /var/lib/mock/dist-an23-build-504894-74854/root/chroot_tmpdir/scmroot/unbound_1767786503
Cloning into '/var/lib/mock/dist-an23-build-504894-74854/root/chroot_tmpdir/scmroot/unbound_1767786503'...
$ git fetch origin a4d62b66341207ea801d183cba7a4f43b386019f:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/unbound_1767786503
 * [new ref]         a4d62b66341207ea801d183cba7a4f43b386019f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4d62b6 Update code from upstream