But I also think that if a maintainer asks you to jump before submitting a PR, you politely ask, “how high?”
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[1] https://www.copyright.gov/ai/
[2] https://www.copyright.gov/ai/Copyright-and-Artificial-Intell...
The source you linked says the opposite of that: "the inclusion of elements of AI-generated content in a larger human-authored work does not affect the copyrightability of the larger human-authored work as a whole"