$ git clone -n https://gitee.com/wenjie2025/postfix_1770676719.git /var/lib/mock/dist-an23-build-512875-75099/root/chroot_tmpdir/scmroot/postfix_1770676719
Cloning into '/var/lib/mock/dist-an23-build-512875-75099/root/chroot_tmpdir/scmroot/postfix_1770676719'...
$ git fetch origin a26cd7e768867253fe3b7a668a696e1236d34f8c:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/postfix_1770676719
 * [new ref]         a26cd7e768867253fe3b7a668a696e1236d34f8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a26cd7e Update code from upstream