gmd:referenceSystemIdentifier's code is in invalid format

[sshi97]

FGP shows the following reference system code.

<gmd:referenceSystemIdentifier>
  <gmd:RS_Identifier>
    <gmd:code>
      <gco:CharacterString>32198</gco:CharacterString>
      </gmd:code>
    <gmd:codeSpace>
    <gco:CharacterString>EPSG</gco:CharacterString>
    </gmd:codeSpace>
    <gmd:version>
      <gco:CharacterString>7.4.1</gco:CharacterString>
    </gmd:version>
  </gmd:RS_Identifier>
</gmd:referenceSystemIdentifier>

where, gmd:code is a number. It violates the validation rule that Reference System Code should have the format EPSG:NUMBER / SR-ORG:NUMBER or have the value Proj4. Example: EPSG:4326.