I'll try to answer this as best I can. This is one of the areas of the conventions surrounding the possibility of refusal of dissolution by the Governor General that is a grey zone, a grey area.
I would say that if a new minority government is defeated, let's say, three days after the opening of Parliament, after the throne speech, and the Prime Minister wishes to call an early election, there is every possibility that the Governor General will refuse. I think many people would accept that view, that you can't have elections so close.
The issue was widely discussed in 1972 when Mr. Trudeau hung to power, as you know, and the informal rule was that if you could survive the six months, that's fine. If you're defeated within the first six months, there is a strong possibility that the request for dissolution would be refused by the Crown. If you are defeated later than that, it would be much more difficult to imagine that the request for dissolution would be refused unless there are clear reviews. And as you know, it's a very difficult power to exercise, to refuse dissolution. The only Governor General who did had the kind of experience.... I'm referring to Lord Byng.
I'm not a lawyer. I don't see these conventions being in any way clarified or modified by the piece of legislation that you are dealing with.