MinecraftForge/MinecraftForge — pull request #781 by purpleposeidon (2013-09-14 02:57:50+00:00)
Title: Methods for asking blocks what item makes them

getPickBlock is unsuitable for this because it calls idPicked, which is
client-only. Many, many mods repeat the annotation, so removing it would
not help. Also vanilla occasionally gives bogus return values for some
blocks.