Bug 187449 [Automation][Smoke][Regression] dynamic text and chart cannot be rendered properly
steps to reproduc: - use the attache report design - preview in pdf and viewer expected behavior: - all report items should be rendered properly actual behavior: - dynamic text and chart were missing in output
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/internal/document/v4/ContainerExecutor.java
childExecutor = prepareChildExecutor( );
			}
			catch ( Exception ex )
			{
				ex.printStackTrace( );
			}
			needPrepareNext = false;
		}
		return childExecutor != null;
	}
	public IReportItemExecutor getNextChild( )
	{
		if ( hasNextChild( ) )
		{
			needPrepareNext = true;
			return childExecutor;
		}
		return null;
	}
	protected IReportItemExecutor prepareChildExecutor( ) throws Exception
	{
		
		if ( fragment == null && nextOffset == -1 )
		{
			DocumentExtension docExt = (DocumentExtension) content
					.getExtension( IContent.DOCUMENT_EXTENSION );
			if ( docExt != null )
			{
				nextOffset = docExt.getFirstChild( );
			}