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.
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.
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)