Overworld generation for Nether Biome spawns with natural water

Overworld generation does have water as part of its generation, so this is most likely intended.

Relates to MC-184613

Please attach the world generation settings file.

{
"generate_features": true,
"bonus_chest": false,
"seed": -1464245863,
"dimensions": {
"minecraft:overworld_nether": {
"generator": {
"type": "minecraft:noise",
"seed": 0,
"biome_source": {
"type": "minecraft:multi_noise",
"seed": 0,
"preset": "minecraft:nether"
},
"settings": "minecraft:overworld"
},
"type": "minecraft:the_nether"
}
}
}

If i change the "settings" value to be a bunch of custom stuff instead of just "minecraft:overworld", then i change default_block, and default_fluid to netherrack and lava, it seems normal then, but it is nowhere near as simple for less experienced users. 

In my testing since the initial bugpost, MC will spit out errors if the entire "noise" variable is ignored, or even just straight up crash. 

I would find it a lot simpler if the default block and fluid were inferred from the "type": "minecraft:the_nether" parameter. 

This is intended. The "settings" property defines the default fluid and the default block. You used "minecraft:overworld", which has water and stone respectively.

This is indeed nowhere near simple for inexperienced users, but they did warn about it in the articles. Worldgen settings are still unstable and experimental.