Dirt can generate below y=0 from mineshafts. This bug was fixed in Java
MC-215876, but not in bedrock.
Seed: 123 Coords: 1170 -36 985 Coords: -90 -32 244
Steps to reproduce:
- Create a world with Cave and Cliffs (with the specified seed).
- Visit the specified coordinates.
Dirt room generated below 0.
Dirts below 0 should not be (including dirt rooms).