https://mail-archives.apache.org/mod_mbox/spamassassin-users/200811.mbox/%3c20581027.p...@talk.nabble.com%3E
Unfortunately from what I can see, FuzzyOCR appears unmaintained upstream.Therefore I would propose that the patch suggested in the link be tested and patched in Debian. Or otherwise that the module's default SA score is modified.