$ git clone -n https://gitee.com/wenjie2025/postfix_1770068791.git /var/lib/mock/dist-an23-build-511140-75057/root/chroot_tmpdir/scmroot/postfix_1770068791
Cloning into '/var/lib/mock/dist-an23-build-511140-75057/root/chroot_tmpdir/scmroot/postfix_1770068791'...
$ git fetch origin 6f2ee201bf8d878d9ccc105023ad4edece658dbc:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/postfix_1770068791
 * [new ref]         6f2ee201bf8d878d9ccc105023ad4edece658dbc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f2ee20 Update code from upstream