Bug 211991 Page header items when in a grid within a grid disappear on runtime render
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLPageLM.java
public boolean layout( )
	{
		if ( context.getCancelFlag( ) )
		{
			close( );
			isLastPage = true;
			return false;
		}
		start(isFirstPage);
		boolean hasNextPage = layoutNodes( );
		if ( isChildrenFinished( ) )
		{
			isLastPage = true;
		}
		if(hasNextPage && !isLastPage)
		{
			context.addLayoutHint( pageContent, false );
		}
		isFirstPage = false;
		end(isLastPage );
		context.initilizePage( );
		return hasNextPage;
	}
	public boolean isFinished( )
	{
		return isLastPage;
	}
	protected void layoutPageContent(IPageContent pageContent)
	{
		IContent header = pageContent.getPageHeader( );