when I placed a torch on the side of a grass block, the torch's hitbox was highlighted correctly, but the torch itself showed up as though placed on a block to the right, though there was no block there.
http://i.imgur.com/a50gjmQ.png
http://i.imgur.com/0LmcDvp.png
Normal torches react the same way, apparently.
http://i.imgur.com/6tLqdrh.png
Fixed for a future version. (MC-59854)