Mineshafts

Hi team, I’d like to add some feedback for the new supports for mineshafts which generate into a cavern. Recently while playing I came across a mineshaft which had generated over a lava lake, it looked very cool, alas it did not last long before the fire ran up the log supports and burnt the mineshafts away. My solution for this would be to have the bottom 3-4 blocks of each support to be cobblestone or some other nonflammable block so that the lava cannot catch the wood on fire.