Not just biome_1 structures but all generated structures can generate regradless of biome

This may seem like a duplicate of: MC-180603 But it is not, it's more of an expansion of it. 

So not only biome_1 structures generate on any biome, but all other kinds of presetable structures. (Video attached)

Including: End cities, fortresses, bastion remnants, villages, and probably all other preset-able structures. 

Personally I love this bug. I'm so glad it made it into a snapshot.