The details might differ per country, but my non-lawyer intuition clearly says that you are responsible for the code you publish, no matter what tool has suggested it.
I’m sure at the end of the day that would be the case in most sane legal systems. However, it does seem almost impractical in reality for anyone to do anything about it (kind of like Uber/Lyft/Airbnb making something so commonplace so quickly that the regulations they broke became meaningless).