Bug 136538 chart cannot inherite table's columns binding when drag into table's group header
steps to reproduce: - create a table - define columns binding - insert a group - drag a chart into table's group header expected behavior: - chart can inherite table's columns binding actual behavior: - it simply couldn't
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/extension/ExtendedEditPart.java
.getReportItemBuilderUI( );
		
			
		if ( builder != null )
		{
		    
		    
		    CommandStack stack = SessionHandleAdapter.getInstance( ).getCommandStack( );
			final String transName = Messages.getFormattedString( "ExtendedEditPart.edit", new Object[] { getExtendedItemHandle( ).getExtensionName( ) } ); 
		   
            stack.startTrans( transName );
            int result = Window.CANCEL;
            try
            {
                result = builder.open( getExtendedItemHandle() );
            }
            catch ( RuntimeException e )
            {
                ExceptionHandler.handle( e );
                stack.rollback();
                return;
            }
            if ( result == Window.OK )
            {
                stack.commit();
                refreshVisuals();
            }
            else
            {
                stack.rollback();