Trigger full press action assigned to partial press

[SolitudeSF]

On python branch assigning action to full press and applying the changes, upon reopening the trigger configuration, you can observe that action is assigned to partial press instead.

[Ryochan7]

I encounter the same problem with the current master branch code. On a somewhat unrelated note, that dialog is currently broken in the Python 3 port.

Update: Fixed bool evaluation of NoAction instances. Python 3 changed the method name.