Comment 11 for bug 1824804

Verified 1.5ubuntu3.18.10.4 on Cosmic:

Buggy version:
root@cc-lp-1824804:~# dpkg -l unattended-upgrades | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===================-==================-============-===========================================
ii unattended-upgrades 1.5ubuntu3.18.10.3 all automatic installation of security upgrades
root@cc-lp-1824804:~# unattended-upgrade --verbose --debug
Initial blacklisted packages:
Initial whitelisted packages:
Starting unattended upgrades script
Allowed origins are: o=Ubuntu,a=cosmic, o=Ubuntu,a=cosmic-security, o=UbuntuESM,a=cosmic
...
Checking: libnss-systemd ([<Origin component:'main' archive:'cosmic-updates' origin:'Ubuntu' label:'Ubuntu' site:'archive.ubuntu.com' isTrusted:True>])
adjusting candidate version: libnss-systemd=239-7ubuntu10.12
falling back to marking libnss-systemd, then adjusting changes
package libnss-systemd upgradable but fails to be marked for upgrade (E:Unable to correct problems, you have held broken packages.)
falling back to adjusting all packages
adjusting candidate version: 2to3=3.6.6-1
adjusting candidate version: amphora-agent=3.0.0-0ubuntu2
adjusting candidate version: aodh-api=7.0.0-0ubuntu3
...

Fixed version:
root@cc-lp-1824804:~# dpkg -l unattended-upgrades | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===================-==================-============-===========================================
ii unattended-upgrades 1.5ubuntu3.18.10.4 all automatic installation of security upgrades
root@cc-lp-1824804:~# unattended-upgrade --verbose --debug
Initial blacklisted packages:
Initial whitelisted packages:
Starting unattended upgrades script
Allowed origins are: o=Ubuntu,a=cosmic, o=Ubuntu,a=cosmic-security, o=UbuntuESM,a=cosmic
...
Checking: libnss-systemd ([<Origin component:'main' archive:'cosmic-updates' origin:'Ubuntu' label:'Ubuntu' site:'archive.ubuntu.com' isTrusted:True>])
adjusting candidate version: libnss-systemd=239-7ubuntu10.12
falling back to adjusting libnss-systemd's dependencies recursively
adjusting candidate version: libnss-systemd=239-7ubuntu10.12
adjusting candidate version: libidn11=1.33-2.2ubuntu1
adjusting candidate version: libsystemd0=239-7ubuntu10.12
adjusting candidate version: libpam0g=1.1.8-3.6ubuntu2
...