Ferns floating over lava pool at coordinates -218, 68, -2 with seed 85961675 in v26.23

I discovered this bug when I was casually playing minecraft in a world where I had typed “Srinivasa Ramanujan" into the world seed section. I punched a tree, got wood, made a crafting table, made a wooden pickaxe, mined stone, made a stone pickaxe, mined copper and coal, smelted copper and made a copper pickaxe and a copper sword (seen in the image below). Then, nightfall came. I hid under the ground and waited for the copper to smelt, crafted full copper armor and waited through the night. The next day came. I exited the underground base and walked in search for a village. during the search, I spotted a wildfire. I put it out. I wondered how the wildfire came into existence. And then I saw it, a lava pool with two ferns floating over it. The fern on the right was floating 2 blocks above a lava source block and the fern on the left was floating 1 block above a lava source block. The game did not crash when it loaded in the ferns.