Bug 176467 Wrong page break effect for spanned cell
When page break occurs on spanned cell, this cell on next page is lost, which cause incorrect page layout. Report design to reproduce the error is attached.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLAbstractLM.java
MasterPageDesign pageDesign =  pageSetup.getMasterPage( 0 );
			context.setMasterPage( pageDesign.getName( ) );
			return pageDesign;
		}
		return null;
	}
	/**
	 * if the content is hidden
	 * 
	 * @return
	 */
	private boolean isHidden( IContent content )
	{
		assert content != null;
		IStyle style = content.getStyle( );
		String formats = style.getVisibleFormat( );
		String format = null;
		if(emitter!=null)
		{
			format = emitter.getOutputFormat( );
		}
		if ( format!=null && contains(formats, format))
		{
			return true;
		}
		if ( content.getContentType( ) == IContent.CELL_CONTENT )
		{
			ICellContent cell = (ICellContent) content;
			IColumn column = cell.getColumnInstance( );
			if ( column != null )