update-manager crashed with ValueError in marked_install(): Object of different cache passed as argument to apt_pkg.DepCache method

[Nicolas_Raoul]

The usual software update thing popped up, I clicked OK, entered my password (I think), some time passed, and then I noticed this crash.

Afterwards I noticed that I had several previous meld processes still running despite me having closed them some time before the crash. Not sure whether it is related or not.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: update-manager 1:18.04.11
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 7 12:01:59 2018
ExecutablePath: /usr/bin/update-manager
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'409'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'531'
 b'com.ubuntu.update-manager' b'launch-time' b'int64 1528326503'
InstallationDate: Installed on 2018-04-29 (38 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
InterpreterPath: /usr/bin/python3.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager --no-update --no-focus-on-map
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonArgs: ['/usr/bin/update-manager', '--no-update', '--no-focus-on-map']
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
SourcePackage: update-manager
Title: update-manager crashed with ValueError in marked_install(): Object of different cache passed as argument to apt_pkg.DepCache method
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo wireshark

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.