I think that's what they meant. Anything else wouldn't make much sense anyway. Seems like making a PR out of someone else's "private" changes now requires two

I think that's what they meant. Anything else wouldn't make much sense anyway. Seems like making a PR out of someone else's "private" changes now requires two PRs: first into my fork, then to upstream. Not that this is a common use case, but I did consider this two or three times the last five years...