It really isn't as simple as that. I don't know the inner workings, but from what I understand - data gets invalidated by its "key" and new pages with new keys

It really isn't as simple as that. I don't know the inner workings, but from what I understand - data gets invalidated by its "key" and new pages with new keys are generated so that the page content remains "fresh" - so no htaccess rule is going to help you with a problem like that. It sounds like there is some serious changes required to fix this so it behaves like conventional pagination, which I'm guessing is why it has not been fixed.