package sgml-base 1.30 failed to install/upgrade: triggers looping, abandoned

[yasaswi]

Upgrading from 20.04 caused this error.

ProblemType: Package
DistroRelease: Ubuntu 21.10
Package: sgml-base 1.30
ProcVersionSignature: Ubuntu 5.8.0-40.45~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu71.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Sat Apr 30 21:55:40 2022
ErrorMessage: triggers looping, abandoned
InstallationDate: Installed on 2020-11-13 (532 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
Python3Details: /usr/bin/python3.9, Python 3.9.7, python3-minimal, 3.9.4-1build1
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.18-9
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
 dpkg 1.20.9ubuntu2
 apt 2.3.9
SourcePackage: sgml-base
Title: package sgml-base 1.30 failed to install/upgrade: triggers looping, abandoned
UpgradeStatus: Upgraded to impish on 2022-04-30 (0 days ago)

[Launchpad Janitor (janitor)]

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