X509IssuerName wrong oid 2.5.4.97

[PaolaRuby]

organizationIdentifier 2.5.4.97 not properly converted

On X509IssuerName I'm getting UNDEF=
UNDEF=VATES-A66721499,CN=UANATACA CA2 2016,OU=TSP-UANATACA,O=UANATACA S.A.,L=Barcelona,C=ES
but must be something like
OID.2.5.4.97=VATES-A66721499,CN=UANATACA CA1 2016,OU=TSP-UANATACA,O=UANATACA S.A.,L=Barcelona,C=ES

Example:
https://github.com/luisgoncalves/xades4j/blob/855738c009524a721b4e29f1c22dc27ce6a730d5/src/test/java/xades4j/verification/Issue166Test.java#L19-L21

xmlseclibs/src/XMLSecurityDSig.php

Lines 1058 to 1067 in a268e60

	if ($issuerSerial && ! empty($certData['issuer']) && ! empty($certData['serialNumber'])) {
	if (is_array($certData['issuer'])) {
	$parts = array();
	foreach ($certData['issuer'] AS $key => $value) {
	array_unshift($parts, "$key=$value");
	}
	$issuerName = implode(',', $parts);
	} else {
	$issuerName = $certData['issuer'];
	}