$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/mailx.git /var/lib/mock/dist-an7-build-29126-15352/root/chroot_tmpdir/scmroot/mailx
Cloning into '/var/lib/mock/dist-an7-build-29126-15352/root/chroot_tmpdir/scmroot/mailx'...
$ git reset --hard origin/a7
HEAD is now at ed5c650 import mailx-12.5-19.el7.src.rpm