$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/postfix.git /var/lib/mock/dist-an8.4-build-19656-8495/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an8.4-build-19656-8495/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard origin/a8
HEAD is now at ac1360d update to postfix-3.5.8-1.el8.src.rpm