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/HTMLAbstractLM.java
.findMasterPage( newMasterPage );
				if ( masterPageDesign != null )
				{
					context.setMasterPage( newMasterPage );
					return true;
				}
			}
		}
		return false;
	}
	protected MasterPageDesign getMasterPage( IReportContent report )
	{
		String masterPage = context.getMasterPage( );
		MasterPageDesign pageDesign = null;
		if ( masterPage != null && !"".equals( masterPage ) ) 
		{
			pageDesign = report.getDesign( ).findMasterPage( masterPage );
			if ( pageDesign != null )
			{
				return pageDesign;
			}
		}
		return getDefaultMasterPage( report );
	}
	private MasterPageDesign getDefaultMasterPage( IReportContent report )
	{
		PageSetupDesign pageSetup = report.getDesign( ).getPageSetup( );
		int pageCount = pageSetup.getMasterPageCount( );
		if ( pageCount > 0 )
		{