100milion Slimelung from farm tile deconstruction bug

I wonder if that has something to do with the hidden "block", which is actually under the farm tile. (Eg, if you make the tile out of sandstone, there is actually a sandstone block, in code, in the air-space of the tile. Normally only used to calculate thermal properties. But, maybe in this instance, it is also adopting the slime-lung too. Since, in code, that sandstone isn't really there, the slime-lung doesn't decay, as slime-lung seems to grow within blocks. Also seen when you build a floor tile next to a slime-lung infected block of slime or algae.)

This one is as interesting as the one where there was 200-tons of water in one block, gassing-out millions of "polluted oxygen", which trapped the water in a corner, under the gas-bubble it was creating. Also polluted with something like 20-billion food-poisoning germs. But that was created by the map itself.