In the rare occasion that I need to make downstream-only changes
patches, I usually just explode the upstream tarball, run "git init",
then "git add .", "git commit -m import", apply my changes, and then
do "git diff --patch > ../00-my-changes.patch" (if it's just one
commit), or "git format-patch -o ../" if there are multiple commits,
and then delete the exploded sources again.
In any case, I think this functionality could be included in rpkg/fedpkg...?
If there are no objections, I will open a ticket for this.
Maybe also something from
could be included too?