Bane of Arthropods Broken in Snapshot 24w18a

Put the summary of the bug you're having here

What I expected to happen: Spiders and Cave Spiders should be taking extra damage from Bane of Arthropods enchantment.
What actually happened was:
They seem to be getting a potion effect making them heal instead.

Steps to Reproduce:
1. Enchant sword with Bane of Arthropods
2. Attack Spider or Cave Spider
3. Spider is healed instead of killed.