Usually when you remove the block under an anvil, the anvil will fall. Sometimes, depending on the block under it, it will brake it.
However, if it is wheat, the anvil will brake, as if you drop it. You can pick it up again, and the wheat remains the same as before.
Comments 3
Yes, although this is not considered a bug by the game developers, and instead a feature requests. Feature requests are not valid on the bug tracker here, and should instead be posted on the feedback site at http://feedback.minecraft.net/.
Hi! This looks to be a duplicate of MC-5614, which was resolved as Invalid due to it being a feature request.