Minecraft Java edition bug (19w02a)

The baby villagers are pre-1.14 texture and when they grow up they still have a pre-1.14 texture

What I expected to happen was...:
That they would be like any other villagers

What actually happened was...:
I couldn't trade with them but thy were normal in any other way

Steps to Reproduce:
1. Take a villager spawn in from creative (i'm not sure if it does it when they breed though)
2. Spawn a villager on a villager to crate a baby villager