If your contributions are genuinely indistinguishable from AI code, then this shouldn’t affect you. There would be no way to enforce it
(a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; [...]
How about if AI generates code in a file, then I copy/paste bits... like stack overflow ?
I assume most IDEs allow you to use their snippets under many different licenses. LLMs have mostly been trained on public git repos under lots of different licenses (most importantly, Copyleft licenses)