Overloading assignment operators to maintain an invariant is one thing, but this particular case of it running off and effectively doing ionis weird to me coming from an embedded c++ background. I don't like operator overloading and think it should be avoided, just to make my bias obvious. I don't code c++ anymore either, rust and no looking back for a few years now.
But it doesn't run off and do I/O ... that's the bug! The OP assumed that setting the variable causes the new page to be loaded but it doesn't--it just says what page should be loaded. The page doesn't get loaded until the app goes idle. So this whole discussion about setters and side effects is completely off kilter.
