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/parser/EngineIRVisitor.java
listGroup.setHeader( header );
			listGroup.setHeaderRepeat( handle.repeatHeader( ) );
			
			String tocExpr = handle.getTocExpression( );
			if ( null != tocExpr && !"".equals( tocExpr.trim( ) ) ) 
			{
				if ( header.getContentCount( ) > 0 )
				{
					ReportItemDesign item = (ReportItemDesign) header
							.getContent( 0 );
					item.setTOC( createExpression( tocExpr ) );
				}
			}
		}
		SlotHandle footerSlot = handle.getFooter( );
		if ( footerSlot.getCount( ) > 0 )
		{
			ListBandDesign footer = createListBand( footerSlot );
			footer.setBandType( ListBandDesign.GROUP_FOOTER );
			footer.setGroup( listGroup );
			listGroup.setFooter( footer );
		}
		boolean hideDetail = handle.hideDetail( );
		listGroup.setHideDetail( hideDetail );
		currentElement = listGroup;
	}
	/**
	 * create a table group using the DE's TableGroup.
	 * 
	 * @param handle