I believe they were moved the other direction in both cases, actually. When they were moved a "shadow" thread was left behind for the benefit of anyone who went looking for it in the old location.
Both links point to the same thread, so nothing is going to get lost and you won't see the same topic twice when you do a search.
btw, when I ask for links to a problem it's not just that I'm lazy, though that is a part of it. I want to make sure I'm looking at the exact same thing you are so there's no confusion.