We were told it'd be in an upcoming patch and yet 2 ot 3 patches have come and gone with no such luck. Leaf piles still get green and stinky and stay on the ground all year round.
Honestly, I don't even think it's technically a bug. I think it's just something they didn't think about hard enough. I have no idea why or how they could actually let something like this slide, however. It just seems ridiculous.
They should just make it where the leaf piles automatically disappear when fall ends. That would be very helpful.