anchor.diff:                  pageText.append( text );
   
                   wiki.saveText( wikiContext, pageText.toString() );
  -
               }
               else
               {
  
positive.code:         log.debug("Previewing "+pagereq);
          session.setAttribute(EditorManager.REQ_EDITEDTEXT,
                               EditorManager.getEditedText(pageContext));
          response.sendRedirect( wiki.getURL(WikiContext.PREVIEW,pagereq,null,false) );
          return;
      }
  
negative.code:     String append  = request.getParameter("append");
      String edit    = request.getParameter("edit");
      String author  = request.getParameter( "author" );
      String changenote = request.getParameter( "changenote" );
      String text    = EditorManager.getEditedText( pageContext );
      if ( !wikiSession.isAuthenticated() && wikiSession.isAnonymous() 
           && author != null )
  