The death message for dying by the explosion of a firework rocket doesn't show the attacker when the item is not renamed

The death message “death.attack.fireworks“ doesn’t show the attacker when the attacker’s crossbow is unrenamed. But when the attacker’s crossbow is renamed or attacker directly launches the renamed fireworks, the death massage shows the attacker and item’s name. By contrast, “death.attack.arrow“ shows the attacker no matter the item is renamed or not. Part of the image in the attachment is from minecraft wiki.

How to reproduce:

1. Get firework rocket with firework star

2. Use the firework rocket as the ammunition for unrenamed crossbow

3. Launch the firework rocket by the crossbow to kill a player