I heard that MC-1981 has been fixed so I tested this with 23w43b, but I found this problem is still there.

When a renamed arrow is shot from a dispenser and kills a player, the death message will say "<PLAYERNAME> was shot by Arrow" even though the arrow is renamed. I expect the message should be "<PLAYERNAME> was shot by <ARROWNAME>".

Same thing happens when a renamed arrow goes through lava to get flame and blow up a minecart with TNT. I'll attach scrennshot of the simple test case.

Thank you!