I'm working on a debian/-only (git-overlay) repository at: https://salsa.debian.org/lts-team/packages/poppler/ Without upstream and pristine-tar branches, extract-source turns to `origtargz`, which uses various methods including `apt-get source`. `apt-get source` only works for sid, as this is the dist that extract-source currently runs on (here failure for stretch): https://salsa.debian.org/lts-team/packages/poppler/-/jobs/7730085 As discussed with @santiago adding `deb-src` matching the target dist could help. A work-around is to rely on other methods (adding a `pristine-tar` branch at the cost of a heavy Git repo, relying on `uscan --download-current-version`).