Signs and chests display cracking animation incorrectly.

Cracking animation just got "fixed" for Chests (normal, trapped and Ender) and signs.

Although it's show (at least in my opinion) incorrectly.
I don't say it doesn't look good!

But with all other blocks in Minecraft the animation starts in the center of that block.
While thees blocks don't.

[A series of picture showing what I'm talking about down in attachments.]