The Bug:

Bedrock can be exposed to lava within lava-filled nether caves and ravines.

Here is an example:

Seed: 1692907036
Coordinates: /execute in minecraft:the_nether run tp @s -200.15 8.51 360.17 68.93 40.06

Steps to Reproduce:

1. Generate a world with the seed provided above and teleport to the given coordinates.
2. Look closely at the nether cave/ravine.
3. Take note as to whether or not bedrock can be exposed to lava within lava-filled nether caves and ravines.

Observed Behavior:

Bedrock can be exposed to lava.

Expected Behavior:

Bedrock would not be able to be exposed to lava.