code: protected boolean stealBackStrongCloseChar(){        
          StrongEmphSuperNode child = (StrongEmphSuperNode) peek();
          child.setClosed(false);
          addAsChild();
          //signal parser to close StrongEmphSuperNode in next check for close char
          push(new ValidEmphOrStrongCloseNode());
          return true;
      }
docs: Steals the last close char by marking a previously closed emph/strong node as unclosed.