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.
Thank you for your report!
We're actually already tracking this issue in MC-180603, 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.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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