[MC-78519] Entity model in spawners has hitbox

If you press F3+B to see entity hitboxes, the small entity model inside mob spawners displays a hitbox even though it's not an actual entity.

Environment

Operating system: OSX 10.9.5
Java Version: 1.6.0_65

Rendering the entity hitbox is codewise part of the entity renderer, thus the small item mode is an pseudo-entity (at least rendered as an entity)

But since it can't actually be hit, should it really have a hitbox?

It's codewise the "bounding box"