This issue also affects being able to use git-buildpackage to generate pristine-tar tarballs for tarballs that were already committed before the recent changes to pristine-tar. For instance I experienced it today with `gbp buildpackage` with gtk4 but the original tarball was committed in January.
Ideally, we would not need to attempt to reconstruct old pristine-tar git branches since that sounds like a very large amount of work and it's disruptive to everyone who has local copies of the git repos. Thank you, Jeremy Bícha
