I feel like this has happened to me several times today, though this is the only example I have saved a link for.
Recently, when I click on a question on a site's main page that's been marked [duplicate], I seem to be getting an auto-redirect to the original question. If this is intentional, I think it's sub-optimal. Not every question that gets closed as a duplicate is an accurate closure, and even if they were: if I want to view the duplicate why can't I? We've always been able to in the past, and this completely eliminates the ability for regular users to reopen (I assume mods on a given site wouldn't be redirected, as is true for other redirect functionality on SE).
So... Is something strange going on, or is this an intentional change? If so, what's the reasoning behind it, and can we please put it back the way it was?