$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/python-dns.git /var/lib/mock/dist-an7-build-29945-15448/root/chroot_tmpdir/scmroot/python-dns
Cloning into '/var/lib/mock/dist-an7-build-29945-15448/root/chroot_tmpdir/scmroot/python-dns'...
$ git reset --hard origin/a7
HEAD is now at 9785ca7 import python-dns-1.12.0-4.20150617git465785f.el7.src.rpm