package dbus 1.12.16-2ubuntu2 failed to install/upgrade: triggers looping, abandoned

[Carsten Roters]

upgrade from 18.04.4 to 20.04 server

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: dbus 1.12.16-2ubuntu2
ProcVersionSignature: Ubuntu 4.15.0-99.100-generic 4.15.18
Uname: Linux 4.15.0-99-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed May 6 18:02:25 2020
ErrorMessage: triggers looping, abandoned
InstallationDate: Installed on 2020-05-05 (1 days ago)
InstallationMedia: Ubuntu-Server 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2
SourcePackage: dbus
Title: package dbus 1.12.16-2ubuntu2 failed to install/upgrade: triggers looping, abandoned
UpgradeStatus: Upgraded to focal on 2020-05-06 (0 days ago)

[Launchpad Janitor (janitor)]

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