great. But perhaps a fork is still needed for editing multiple files and submitting as one pull request?

or the pull request would accumulate changes?

I cannot reproduce but I noticed a situation when I was issuing multiple pull requests and the previous pull request somehow got commits that weren't intended to end up there; so I begin to think that it was intentional.

(just asking because I would like to avoid creating a tmp github account just to try that out, otherwise I wouldn't bother you with silly questions)