The Bug:

Seagrass can occasionally replace parts of a swamp hut.

Steps to Reproduce:

• Enter the following seed and coordinates:

Seed: -5436467103508185805
Coordinates: /execute in minecraft:overworld run tp @s 432956.16 60.01 1054.61 299.93 26.89

→  Notice how seagrass can occasionally replace parts of a swamp hut.

Additional Information:

I've attached a screenshot which demonstrates this issue. Here you can see that seagrass can occasionally replace parts of a swamp hut. Relates to MC-125675 and MC-144719.