Baby cow eye height is misplaced and causes them to suffocate in 1-high areas

As of 13w06a, entity hitboxes (F3 + B to show them) now display entity eye level in red... But baby cow/mooshroom red lines (that represent eye level) are misplaced.

Because of that, baby cows suffocate when they only have a one block height to stand in, though their hitbox is smaller than them.