This is still a valid ticket, it can be reproduced by using /fill replace water with air when there is seagrass or kelp in the water. If you then remove the plants, and use /fill again, some water source blocks will remain (and if there are enough of them, they will spawn new water blocks until most of the area is filled up again)
This is still a valid ticket, it can be reproduced by using /fill replace water with air when there is seagrass or kelp in the water. If you then remove the plants, and use /fill again, some water source blocks will remain (and if there are enough of them, they will spawn new water blocks until most of the area is filled up again)