And I have had no luck tracking it down. It does not appears to do anything other than confuse.
I initially located a second configuration file, local.cf1 adjacent the live file local.cf pertaining to spamassassin configuration. I hoped that was the reason. However, removing it changed nothing.
I vote ignore it. Make SURE you have installed the mailfront rules to utilize the conservative RBL afforded by spamhaus.org. Ray Mitchell did a HOWTO in the other forum.
You will receive 70% less SPAM for SpamAssassin to deal with.
regards,
patrick