Item Component: Equipment rendering does not take effect for certain item_model cases

1. if you use

/give @s apple[equippable={"slot":head}]

and equip to head, can render that apple.

that right！

2. BUT if use the command

/give @s apple[item_model=player_head,equippable={"slot":head}]

gives an apple that has the model of a player head.

3. When equipped on the head, it does not render as a head or an apple—it renders nothing.

Not only player_head not render. all Skull not render.