Villagers in 18w50a produce all the same offsprings (with a brown coat) with ehom you cant trade when they grow up. 

What I expected to happen was...:
When i bred villagers i expected that i get a random child that grows up into a villager that you can trade with. 

What actually happened was...:
All children the villagers made had a brown coat. When they grew up, they still had the same brown coat, and i could not trade with them. 

Steps to Reproduce:
1. Get two or more villagers
2. Make enough houses available
3. Give them food so they will breed

4. Wait for several babys 

5. Notice that the babys all have the same coat

6. Wait for them to grow up, and Notice that you cant trade with them.