package avahi-daemon 0.7-4ubuntu7.3 failed to install/upgrade: installed avahi-daemon package post-installation script subprocess returned error exit status 1

[Phoenix Malizia]

Happened during package upgrade performed by Software Updater gui applet. My *guess* is that it crashed because it wasn't equipped to handle a custom user avahi-daemon.conf (I have use-ipv4 and use-ipv6 set to no in order to stop network printers from being aggressively added to my printer list).

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: avahi-daemon 0.7-4ubuntu7.3
ProcVersionSignature: Ubuntu 5.4.0-159.176-generic 5.4.241
Uname: Linux 5.4.0-159-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Thu Jan 4 10:41:54 2024
ErrorMessage: installed avahi-daemon package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2016-08-25 (2688 days ago)
InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64 (20140204)
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3.2
 apt 2.0.10
SourcePackage: avahi
Title: package avahi-daemon 0.7-4ubuntu7.3 failed to install/upgrade: installed avahi-daemon package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2023-04-27 (251 days ago)
mtime.conffile..etc.avahi.avahi-daemon.conf: 2023-04-28T14:41:17.016393