protected function executeSchemaCommand(InputInterface $input, OutputInterface $output,
		SchemaTool $schemaTool, array $metadata, SymfonyStyle $ui)
	{
		$merger = new MetadataMerger();
		$metadata = $merger->merge($metadata);

		return parent::executeSchemaCommand($input, $output, $schemaTool, $metadata, $ui);
	}