$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/libxml2 /var/lib/mock/dist-an7-updates-build-44485-21814/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-an7-updates-build-44485-21814/root/chroot_tmpdir/scmroot/libxml2'...
$ git reset --hard origin/a7
HEAD is now at 59efe57 update to libxml2-2.9.1-6.el7.5.src.rpm