docs: private boolean hasNodesInContext(SiteNode node) {
  		@SuppressWarnings("unchecked")
  		Enumeration<TreeNode> en = node.children();
  		while (en.hasMoreElements()) {
  			SiteNode sn = (SiteNode) en.nextElement();
  			if (isInContext(sn)) {
  				return true;
  			}
  			if (hasNodesInContext(sn)) {
  				return true;
  			}
  		}
  		return false;
  	}