Bug 144613 Blank page when set group page break before as always.
Description: Blank page when set group page break before as always. Steps to reproduce: 1. Insert a table. 2. Add a group, set group page break before to always 3. Delete table header and footer 4. Preview in html and pdf Expected result: No blank page Actual result: A blank page in html. If you set group page-break-after to always and preview, no blank page.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFPageLM.java
setMaxAvaHeight( context.getMaxHeight( ) );
		setCurrentIP( 0 );
		setCurrentBP( 0 );
	}
	/**
	 * support body auto resize, remove invalid header and footer
	 * 
	 * @param page
	 */
	protected void updateBodySize( PageArea page )
	{
		IContainerArea header = page.getHeader( );
		ContainerArea footer = (ContainerArea) page.getFooter( );
		ContainerArea body = (ContainerArea) page.getBody( );
		ContainerArea root = (ContainerArea) page.getRoot( );
		if ( header != null && header.getHeight( ) >= root.getHeight( ) )
		{
			page.removeHeader( );
			header = null;
		}
		if ( footer != null && footer.getHeight( ) >= root.getHeight( ) )
		{
			page.removeHeader( );
			footer = null;
		}
		if ( header != null
				&& footer != null
				&& footer.getHeight( ) + header.getHeight( ) >= root
						.getHeight( ) )
		{