$ git clone -n https://gitee.com/opencloudos-stream/postfix.git /var/lib/mock/dist-ocs23-loongarch64-build-134120-9587/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-134120-9587/root/chroot_tmpdir/scmroot/postfix'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/postfix
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3280b4f !5 Upgrade to version 3.8.5 (Fix CVE-2023-51764) Merge pull request !5 from ZoeDong/master