Confirmed that in bionic it offers this Origins-Pattern in the "Configuring unattended-upgrades" debconf question:
"origin=Debian,codename=${distro_codename},label=Debian-Security";
That should be Ubuntu, or ${distro_id} perhaps. That being said, it doesn't seem to be used in the end, because my 50unattended-upgrades file has no mention of Debian and uses ${distro_id} everywhere.
Confirmed that in bionic it offers this Origins-Pattern in the "Configuring unattended- upgrades" debconf question:
"origin= Debian, codename= ${distro_ codename} ,label= Debian- Security" ;
That should be Ubuntu, or ${distro_id} perhaps. That being said, it doesn't seem to be used in the end, because my 50unattended- upgrades file has no mention of Debian and uses ${distro_id} everywhere.