Villagers only sell suspicious stew with night vision

How to reproduce this bug?

1. Find a villager who is a farmer by profession.
2. Trade with this villager until it becomes an expert.
3. Exchange a suspicious stew.
4. Discover that all the suspicious stew are night vision.

Expected results: Farmers should sell a variety of suspicious stew.
Actual results: Villagers only sell suspicious stew with night vision
tips: This bug persists after opening villager trade balance adjustments.