fishing_hook with bug

Get “Droping items” From “/kill @e[type=minecraft:fishing_hook]”without water

If you kill @e[type=minecraft:fishing_hook],you will get droping item.
Steps to reproduce:

1.Run Minecraft
2.Go fishing without water,Without water！
3.use /kill @e[type=minecraft:fishing_hook]
4.You can see fish or some droping items

such as that video.