The bug
In creative or spectator mode, if you are too close to pufferfish mobs, they will attack you and give you poison effect. Invisibility doesn't help, either.
Linked issues
is duplicated by 11
relates to 2
Attachments
Comments 20
Tried with naturally spawned pufferfish, spawned by spawn eggs, and spawned by fish buckets. None of them attacked (poisoned) me.
However, the pufferfish still bloated up when you're near them in Creative mode, but that would be a different issue imo. Maybe you meant that?
Alright, I created MC-126085 for the bloating.
Think you mean MC-129884?
Affects 18w09a