Prominent, I see what you mean. There is a marked inconsistency with how picking is recognised. But also, as you pointed out, is it also an 'or' bug, because if you separate the 'type="yes"' away from the type="no" in different events, you won't fire the 'bug' text.
On the other hand, if you use the system Pick (like you did with name="one") with "yes" and "no", while using 'or' the 'bug' text doesn't fire.
Looks like an 'or' conditional issue. Either way there's certainly something amiss.