View transitions to the shell while creating an online account

In image #294 (but also on a few ones before that), when an application quits, the view goes back to the Apps scope, and not to the previously opened application.
You can verify what this means by creating a Google or Facebook account from the System Settings: as soon as the authentication window disappears, you'll be taken back to the Apps scope and not to the Online Accounts window.

This will be fully fixed when we implement trusted sessions, but it would be nice if meanwhile we can make the experience of creating an account a bit better. :-)