Comment 26 for bug 1891673

focal/ussuri verified with [Test Case] and output is:

# apt-cache policy neutron-common
neutron-common:
  Installed: 2:16.1.0-0ubuntu2
  Candidate: 2:16.1.0-0ubuntu2
  Version table:
 *** 2:16.1.0-0ubuntu2 500
        500 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2:16.1.0-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
     2:16.0.0~b3~git2020041516.5f42488a9a-0ubuntu2 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu focal/main amd64 Packages

# ./discover_ip_rules_affected_by_lp1891673.sh
Nothing to cleanup - exiting.