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Funnily enough, they also reordered the basic lands...but the opposite, to alphabetical from set order.
Which has also resulted in everyone's draft decks being Zendikar Rising lands instead of Baldur's Gate lands. Which is kind of funny but also hopefully something that will be fixed, because otherwise we'll probably never see the current set's lands being the default in draft decks again.
This is a bug that will be fixed soon
We've changed the way we're determining this and, Urza willing, it will stay fixed from now on