I'm working on a free proyect over Github. I fork it, made some changes, did a PR and everything worked ok (PR was accepted).
Then I update my fork with upstream, did some other changes, and made another PR.
Then I realice that my PR included all the commits I pushed earlier, and every file I modify, even the ones I already sent.
I made the upstream to be up to date, but I failed somewhere, or my fork, never understood that I was up to date (I even made the push).
So to avoid that, I made a branch only with the file I changed. However, the PR still want to send all the commits I made to the repo. The files in this case, are ok, only modified files are on the PR
So, what is the correct way to work with a fork?
Did I missed a step after upstream and push? or should I delete my fork after every PR and start all over again?