Fix messages to load when selected

[rob05c]

Currently, there's a bug that messages are fetched and displayed, for whatever channel happens to be focussed, as soon as the managers finish initialising.

Either it needs fixed to not do that, and only fetch when 'enter' is pressed (current select behavior), or it needs changed to select and display when the focussed channel is changed (arrow keys or C-n C-p) (alternate selection behavior I'm considering).