> The workaround is to apt-get purge squid-deb-proxy-client.
That is not a workaround, that is the proper "fix".
Squid-deb-proxy-client is essentially simply a package that installs a configuration snippet /etc/apt/apt.conf.d/30autoproxy so that any call to the network will be proxied to a local proxy iff such a proxy is present. That test is being done in /usr/share/squid-deb-proxy-client/apt-avahi-discover. What happens when you remove the package is that /usr/share/squid-deb-proxy-client/apt-avahi-discover gets removed, but /etc/apt/apt.conf.d/30autoproxy stay around until you purge the package.
In my opinion, this is expected behaviour and this ticket should be closed as invalid.
> The workaround is to apt-get purge squid-deb- proxy-client.
That is not a workaround, that is the proper "fix".
Squid-deb- proxy-client is essentially simply a package that installs a configuration snippet /etc/apt/ apt.conf. d/30autoproxy so that any call to the network will be proxied to a local proxy iff such a proxy is present. That test is being done in /usr/share/ squid-deb- proxy-client/ apt-avahi- discover. What happens when you remove the package is that /usr/share/ squid-deb- proxy-client/ apt-avahi- discover gets removed, but /etc/apt/ apt.conf. d/30autoproxy stay around until you purge the package.
In my opinion, this is expected behaviour and this ticket should be closed as invalid.