The village east-south-east of spawn in this seed (7648090710864857972) spawns with one plains village house, and the rest are savannah. The house spawned on the edge of a savanna biome and a savanna plateau biome, but as far as I can tell there's no plains anywhere nearby. The house at 204 / 133 is also on the edge of a savanna and savanna plateau, and it generated as a normal savanna house.
In 1.14.0, the village generates as all acacia houses, although the houses and their positions were slightly different too.
Thank you for your report!
We're actually already tracking this issue in MC-154472, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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