Coastal Village Seed: -1813740965; World Type = Infinite; Game Mode = Survival; Difficulty = Normal; The world was created after Beta 1.5. Location is Survival Zombie Village x=2053 z=175
I converted all the zombie Villagers to regular villager mobs via gold apples and weakness potion. The villagers consisted of a variety of farmers and clerics. None of the mobs will trade, accept food, or breed. The farmers do not farm. The villagers act like Nitwits which are in JAVA and PS4 Console versions, but they appear (skins) as farmers and clerics.

I made a copy of the world, and changed it to Creative Game Mode with Normal Difficulty. I spawned Villagers and these mobs would trade; the farmers began farming; and they created baby villager mobs.

I visited several other villages and the villagers trade, breed, and farm normally.