canceled release upgrade will cause motd to be wrong

[Brian Murray]

I was testing an upgrade from Y to Z using do-release-upgrade and backed out when the changes were successfully calculated. Later on when I ssh'ed in I saw the following message.

$ ssh clean-yakkety-amd64
Welcome to Ubuntu 16.10 (GNU/Linux 4.8.0-46-generic x86_64)

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

955 packages can be updated.
0 updates are security updates.

Last login: Fri Apr 14 09:38:46 2017 from 192.168.122.1

Clearly, the quantity of packages available to update must be from when sources.list contained zesty instead of yakkety.

[Brian Murray (brian-murray)]

Testing again I ran do-release-upgrade, exited and immediately checked updates-available.

bdmurray@clean-yakkety-amd64:~$ sudo cat /var/lib/update-notifier/updates-available

955 packages can be updated.
0 updates are security updates.