Comment 14 for bug 1795696

Verified 1.1ubuntu1.18.04.7~16.04.3 on Xenial:

root@x-lp-1795696:~# apt-get autoremove
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  linux-image-unsigned-4.15.0-34-generic linux-modules-4.15.0-34-generic
0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
After this operation, 74.5 MB disk space will be freed.
Do you want to continue? [Y/n] n
Abort.
root@x-lp-1795696:~# 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 1.1ubuntu1.18.04.7~16.04.2 all automatic installation of security upgrades
root@x-lp-1795696:~# unattended-upgrade --dry-run
Traceback (most recent call last):
  File "/usr/bin/unattended-upgrade", line 1998, in <module>
    sys.exit(main(options))
  File "/usr/bin/unattended-upgrade", line 1798, in main
    options.verbose or options.debug, options.dry_run)
  File "/usr/bin/unattended-upgrade", line 1495, in do_auto_remove
    if res:
UnboundLocalError: local variable 'res' referenced before assignment
...
root@x-lp-1795696:~# 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 1.1ubuntu1.18.04.7~16.04.3 all automatic installation of security upgrades
root@x-lp-1795696:~# unattended-upgrade --dry-run
root@x-lp-1795696:~# unattended-upgrade --dry-run --verbose
Initial blacklisted packages:
Initial whitelisted packages:
Starting unattended upgrades script
Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial
Removing unused kernel packages: linux-modules-4.15.0-34-generic
Keeping 1 auto-removable package(s) because it would also remove the following packages which should be kept in this step: linux-image-unsigned-4.15.0-34-generic
Packages that were successfully auto-removed:
Packages that are kept back:
No packages found that can be upgraded unattended and no pending auto-removals