[MC-130154] Checkerboard Buffet worlds incorrectly generate ocean and rivers

seed:8318324234350758861

generatorOptions:

{"biome_source":{"type":"minecraft:checkerboard","options":{"biomes":["minecraft:roofed_forest","minecraft:plains","minecraft:desert","minecraft:jungle","minecraft:warm_ocean","minecraft:river","minecraft:sky_island_high","minecraft:ice_flats"],"size":5}},"chunk_generator":{"type":"minecraft:surface","options":

{"default_block":"minecraft:stone","default_fluid":"minecraft:water"}

}}

Warm oceans look like desert and have almost no water. Most of the land level is 64+. Same is true for river biomes.