Trader llamas just don't stop spitting at the player at all if aggroed. If you attack the wandering trader/llama they keep spitting, even after being tamed. I tried with regular llamas, and they do stop spitting after being tamed.

What I expected to happen was...:
After taming the trader llama it should stop spitting at me.

What actually happened was...:
It did not.

Steps to Reproduce:
1. Find a wandering trader.
2. Attack the wandering trader, or either llama.
3. Kill the trader.

4. Tame one of the llamas.

5. Expect to have a new pet.

6. Be dissapointed that it won't stop spitting.