$ git clone -n https://gitee.com/lizhao2025/postfix.git /var/lib/mock/dist-an23-build-500519-74764/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an23-build-500519-74764/root/chroot_tmpdir/scmroot/postfix'...
$ git fetch origin 2212b2de889efbbd10d9ac3fc0010475741002d5:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/postfix
 * [new ref]         2212b2de889efbbd10d9ac3fc0010475741002d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2212b2d Update code from upstream