anchor.diff:           'handle-setext-headers
            'handle-atx-headers
            'merge-chunks-in-document
  -         ;'merge-lines-in-chunks
  +         'merge-lines-in-chunks
            'canonize-document))
     (empty! (line-code->stripper env))
     (empty! (strippers env))
  
positive.code: 		       )))
  		 ;; add to current chunk
  		 (when current
  		   (insert-item (lines current) line))
  		 (setf was-blank? (line-is-empty-p line))
  		 (loop while (> level old-level) do
  		      (insert-item 
  
negative.code: 	   (load-time-value (ppcre:create-scanner 
  	    '(:sequence #\{ (:greedy-repetition 0 nil :whitespace-char-class)
  	      "include" (:greedy-repetition 0 nil :whitespace-char-class)
  	      :whitespace-char-class
  	      (:register (:greedy-repetition 0 nil :everything))
  	      (:greedy-repetition 0 nil :whitespace-char-class) #\}))) line)))
      (when matches
  