If you want to shut down the loop, you'd need to modify both recipes, since they're an equivalent exchange. Should be pretty easy to do in a small compatibility mod, if you want to. I won't make changes to Linox recipes from this mod.
This does reveal a stone-positive loop between lava from stone and the vanilla molten copper from lava recipe, though. Even at 0% prod on lava from stone, copper from lava can generate 60 stone per 500 lava at +300% prod. I'm not sure what I want to do about that, if anything.