$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/postfix.git /var/lib/mock/dist-an7-build-32793-16102/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-an7-build-32793-16102/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard origin/a7
HEAD is now at 0887bd0 import postfix-2.10.1-7.el7.src.rpm