Comment 12 for bug 1821867

Successfully verified on cosmic - since I was able to login to a newly installed system (that was installed using 'apt-setup/proposed=true') right away:

$ ssh ubuntu@hwe0007
ubuntu@hwe0007's password:
Welcome to Ubuntu 18.10 (GNU/Linux 4.18.0-17-generic s390x)

 * Documentation: https://help.ubuntu.com
 * Management: https://landscape.canonical.com
 * Support: https://ubuntu.com/advantage

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

ubuntu@hwe0007:~$ apt-cache policy netplan.io
netplan.io:
  Installed: 0.96-0ubuntu0.18.10.2
  Candidate: 0.96-0ubuntu0.18.10.2
  Version table:
 *** 0.96-0ubuntu0.18.10.2 500
        500 http://us.ports.ubuntu.com/ubuntu-ports cosmic-proposed/main s390x Packages
        100 /var/lib/dpkg/status
     0.40.2.2 500
        500 http://us.ports.ubuntu.com/ubuntu-ports cosmic-updates/main s390x Packages
     0.40.2 500
        500 http://us.ports.ubuntu.com/ubuntu-ports cosmic/main s390x Packages
ubuntu@hwe0007:~$

Adjusting verification tag ...