Code review comment for lp:~flscogna/ubuntu-terminal-app/profile-selection

There seems to be a breakage in some use cases.

Add a few layouts
Go back to the main terminal screen
Select one as the current one
Go back to layout settings, de-select the one set as current

Expected behaviour:- Switch to another layout (next in list for example), or un-set a layout

Actual behaviour can sometimes be:-

* No layout set, choosing a layout has no effect:-
http://people.canonical.com/~alan/screenshots/device-2015-05-27-155914.png
http://people.canonical.com/~alan/screenshots/device-2015-05-27-155920.png