Villages that cross into multiple biomes spawn the wrong kind of villager

The bug

If a village spawns between two biomes, the villagers will receive the clothing type of whatever biome they happen to generate in, instead of the appropriate type for the village. It's intended for all villagers to spawn matching (MC-155060).

How to reproduce

1. Create a world with the seed 98262
2. Enter the village directly near spawn
3. Observe that some of the villagers have a swamp skin.

If the overlapping biome is not a typical villager biome (e.g. mountains), villagers of that type will appear to be plains villagers.