code: private void lexicalDescend(PageCompilingContext pc, Element element, boolean shouldPopScope) {
  
          //pop form
          if ("form".equals(element.tagName()))
              pc.form = null;
  
          //pop compiler if the scope ends
          if (shouldPopScope) {
              pc.lexicalScopes.pop();
          }
      }
docs: Complement of HtmlTemplateCompiler#lexicalClimb().
  This method pops off the stack of lexical scopes when
  we're done processing a sitebricks widget.