Bug 147676 [regression]Visibility set in the first col will affect the second col
Description: Visibility set in the first col will affect the second col Steps to reproduce: 1. Insert a grid(3*3), insert contents to each cell. 2.Set the first col to hide all in visibility and preview Expected result: Only the first col is hidden. Actual result: The second col is hidden, too. If you set the second col in step2, the third col will disappear.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/HTMLListingBandLM.java
IReportItemExecutor executor, IContentEmitter emitter )
	{
		super.initialize( parent, content, executor, emitter );
		repeatHeader = false;
		intializeHeaderContent( );
	}
	public void close( )
	{
		super.close( );
		if ( repeatHeader )
		{
			assert executor instanceof DOMReportItemExecutor;
			executor.close( );
		}
	}
	private void intializeHeaderContent( )
	{
		assert content != null;
		IElement pContent = content.getParent( );
		assert pContent != null;
		assert content instanceof IBandContent;
		int type = ( (IBandContent) content ).getBandType( );
		repeatHeader = false;
		if ( type == IBandContent.BAND_HEADER
				|| type == IBandContent.BAND_GROUP_HEADER )
		{
			if ( pContent instanceof IGroupContent )
			{
				IGroupContent groupContent = (IGroupContent) pContent;
				repeatHeader = groupContent.isHeaderRepeat( );