~root/.spamassassin/auto-whitelist is huge -- but autowhitelist is not enabled...?

[Furnish, Trever G]

If SpamAssassin Auto Whitelist = no, shouldn't my system NOT be creating
~root/.spamassassin/auto-whitelist?

My auto-whitelist file is 185MB, even though mailscanner's configured
not to use auto-whitelist (and spamassassin isn't used by anything on
this server other than mailscanner).

MailScanner version is 4.38.9; spamassassin version is 3.0.2.  I only
noticed the huge auto-whitelist file as part of preparing for upgrades
to the latest versions of both.  I'm just surprised to find it being
used, since the mailscanner setting is set to no.  (And yes, the file's
recent, not just an old file.)

Am I misunderstanding?  Should that be in use?  Is this just a bug in my
software versions? 
 
--
Trever Furnish, tgfurnish at herffjones.com
Herff Jones, Inc. Unix / Network Administrator
Phone: 317.612.3519
Any sufficiently advanced technology is indistinguishable from Unix.