For some reason, I just now realized Jeb has a Minecraft Wiki account. Which is weird considering I remember Mojang staff marking bugs as fixed before. But he just marked a bug fixed on the wiki. Not too significant, but I noticed it like yesterday and the timing was great: He fixed villagers not having hearts when breeding in the latest snapshots.
I'm going through fix fixes, and apparently upsidedown stairs and half slabs now work as solid blocks, allowing the player to place things like torches, pressure plates, etc. on them. He says he hasn't tested this yet, it was done by Dinnerbone. Hopefully this doesn't screw up chests with these things directly over them for some reason.
Follow Jeb's account for any bugs you want fixed, he marks them as he sees them. :D