8b87274958
The CI added --default-branch=stable, so the repo ref is app/io.unom.Punktfunk/x86_64/stable. build-bundle defaults to `master` when no branch is given → "Refspec app/io.unom.Punktfunk/x86_64/master not found". Pass `stable` explicitly in both flatpak.yml and the local build-flatpak.sh. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>