sa-learn - Ignore Subject Spam Tag

[Nathan Johanson]

Is there a simple way to ignore the spam tag in the subject header when manually learning spam? 
 
I know that SpamAssassin ignores it's own markup and I'm familiar with using the  bayes_ignore_header directives for the MailScanner  headers, but am curious what to do about the spam subject modification. I suppose I could reconfigure MailScanner to leave the the subject alone, but I prefer not to do this if possible. Any ideas or workarounds?
 
Nathan