Mangrove roots can be replaced by stone from lava pools

The Bug:

Mangrove roots can be replaced by stone from lava pools.

Here is an example:

Seed: 3260044728808172435
Coordinates: /execute in minecraft:overworld run tp @s 198614.80 65.00 3576.96 118.22 8.59

Steps to Reproduce:

1. Generate a world with the seed provided above and teleport to the given coordinates.
2. Look closely at the mangrove roots near the lava pool.
3. Take note as to whether or not mangrove roots can be replaced by stone from lava pools.

Observed Behavior:

Mangrove roots can be replaced by stone.

Expected Behavior:

Mangrove roots would not be able to be replaced by stone.