Comment 8 for bug 1726922

Doug that's exactly what the bug says and why I filled it, you are not being asked for the auth code simply because there is a bug in the login. I filled the bug, the annoyance is because the application is asking for a password it doesn't need.

My feeling is that it is using some remanent pre-update account. In response Sebastian Bacher, I don't believe it's an upstream bug, since is generated in the upgrade process, I think the accounts were ill transformed in the upgrade process, either way I generated a bug report in gnome-calendar: https://bugs.launchpad.net/ubuntu/+source/gnome-calendar/+bug/1726922