$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/python-nss.git /var/lib/mock/dist-an7-build-32910-16130/root/chroot_tmpdir/scmroot/python-nss
Cloning into '/var/lib/mock/dist-an7-build-32910-16130/root/chroot_tmpdir/scmroot/python-nss'...
$ git reset --hard origin/a7
HEAD is now at 800f3ca import python-nss-0.16.0-3.el7.src.rpm