I didn’t discover that bug myself, it was said by someone else, but anyway, here’s a problem. If you disassemble, say, empty lighter, you will always get “pilot light” which is essential to craft lighter. So when you craft a lighter out of given pilot light, you get a full lighter essentially refueling the first lighter using nothing (well, 6 game seconds, but converting time to gasoline is interesting magic).
I don’t know whether it still exists (I’ve dropped cataclysm for a while), but I checked it on my [468c52e] version and it works.
BTW seems like it might affect everything similar to lighters in terms of charge (random charge upon creation).