anchor.diff:  incorrectly processed as list.
   ....
    
  +.Literal Paragraph with style attribute
  +[literal]
  +This is a literal paragraph
  +with literal style attribute.
  +
  +.Literal Paragraph (indented)
  +
  +  This is a literal paragraph
  +  with literal style attribute.
  +
   .Optional Title
   [quote, cite author, cite source]
   ____
  
positive.code: :toc:
  :source-highlighter: coderay
  :icons: font
  :experimental:
  
  = Level 1
  
  Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  
negative.code: 
  ===== Level 5
  
  Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. 
  Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
  
  ===== Level 6
  
  Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam 
  nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, 
  sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. 
  Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.
  
  
  [NOTE]
  