Correct transaction management. cf. bug https://openrdf.atlassian.net/browse/SES-2295 and tomcat default management of PUT request with form data (application/x-www-form-urlencoded encoded)

<?php
namespace CorpusParole\Libraries\Mergers;

class JsonDocumentMerger {

    public function mergeJSON($doc, $jsonDoc) {

        return $doc;
    }
}