Comment 1 for bug 2020386

FWIW, git-ubuntu's specification doesn't define the pristine-tar branch specifics (eg. ref names), except that they exist. Same for the dsc tags. I see importer/{ubuntu,debian}/pristine-tar. I don't remember the specifics but the importer prefix may or may not be a mistake. Maybe we're stuck with that now. I do remember that we couldn't just use "pristine-tar" because that doesn't allow for Debian and Ubuntu orig tarballs being different, which they can be in the general case even if we try to avoid it.

I'm also aware that git-ubuntu's pristine-tar functionality is broken a lot of the time. It's quite far down the list of priorities to fix. For now it's best effort only, and maybe we'll break things.

It may not be safe to commit to git-build-recipe changes that assume that git-ubuntu's layout wrt. pristine-tar and upstream tags will not change.