[Mimedefang] sa-mimedefang.cf read by spamassassin

[Kenneth Porter]

mimedefang-2.44-0.b1
spamassassin-3.0.0-0.2pre1

When I run "spamassassin --lint --debug" it reports that it's reading 
/etc/mail/spamassassin/sa-mimedefang.cf. Shouldn't this file only be used 
when SA is run from MD? And if so, should it not be removed from the global 
SA config directory? (SA will parse any file ending in .cf in that 
directory as a user-supplied rule file.)