Grass can generate on Muddy Mangrove Roots

The Bug

Grass can generate on Muddy Mangrove Roots which is an invalid block for it to generate on

Reproduce

Seed: -1143875784663408071
Coordinates: /execute in minecraft:overworld run tp @s 3504.65 64.00 4233.11 88.20 35.40

• Note you may have to fly to the locations instead of teleporting

Observed Result

The grass generated on the Muddy Mangrove Roots

Expected Result

The grass wouldn't generate on the Muddy Mangrove Roots