You're probably looking for https://discourse.ubuntu.com/t/spec-apt-deb822-sources-by-default/29333/11
This will be an issue until the appropriate tooling is fixed. Until then, looks like we have both. -- https://code.launchpad.net/~ubuntu-release/autopkgtest/+git/development/+merge/457169 Your team Canonical's Ubuntu QA is subscribed to branch ~ubuntu-release/autopkgtest/+git/development:master. -- Mailing list: https://launchpad.net/~canonical-ubuntu-qa Post to : canonical-ubuntu-qa@lists.launchpad.net Unsubscribe : https://launchpad.net/~canonical-ubuntu-qa More help : https://help.launchpad.net/ListHelp