$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/mailman.git /var/lib/mock/dist-an7-updates-build-43120-21672/root/chroot_tmpdir/scmroot/mailman
Cloning into '/var/lib/mock/dist-an7-updates-build-43120-21672/root/chroot_tmpdir/scmroot/mailman'...
$ git reset --hard origin/a7
HEAD is now at 74ec68a update to mailman-2.1.15-30.el7.src.rpm