I’m sorry, Paul, but I don’t agree that this is a bug.
You’re opting to use incompatible non-default printer settings and this is the only reason why you’re having problems printing. Breww’s document is valid and normal for how a document like this would be expected. I understand why you would like to print double-sided, but this is still a feature request.
At Breww, we love the planet, so paper-saving features are important for us, and we will make sure we get this request implemented when we can.