From the entry for Wishing Well on Dominion Strategy, I quote:
Cards that you view with Spy get drawn by the Wishing Well instead of being wished for.
The cards in question are these:
But as I understand it, after you play Spy, you know what the top card is (if you don't discard it), but this is drawn immediately from Wishing Well, and then you don't know what to wish for.
Am I misunderstanding how these cards work, or is the article referring to something else?