Oops, my fix wasn't completely correct either.  This one is and is less
redundant although it doesn't keep with the spirit of org-set-local

  (org-set-local 'buffer-substring-filters
         (cons (lambda (x) (set-text-properties 0 (length x) nil x) x)
               (if (boundp 'buffer-substring-filters)
buffer-substring-filters nil)))


-- 
Ed Hirgelt

Life is too short to read bad books.