In Artful I ran: $ sa-learn --help # still triggered the bug $ vim /etc/apt/sources.list # Enable proposed $ apt update $ apt install spamassassin $ sa-learn --help # issue fixed
In Artful I ran: sources. list # Enable proposed
$ sa-learn --help # still triggered the bug
$ vim /etc/apt/
$ apt update
$ apt install spamassassin
$ sa-learn --help # issue fixed