Element parser throwing errors for xlinks

[shehzan10]

I have data that contains a cityobject like:

<gml:solidMember>
  <gml:Solid>
    <gml:exterior xlink:href='#otherobject'>
    </gml:exterior>
  </gml:Solid>
</gml:solidMember>

Looks like this causes it to run

libcitygml/sources/src/parser/citygmlelementparser.cpp

Lines 36 to 42 in b71d2e8

	if (!m_boundElement.valid()) {
	// This might happen if an container element that usally contains a child element links to an exting object using XLink an thus
	// uses a combined start/end element: e.g.: <surfaceMember xlink:href="#..."/>
	// For such elements a child parser must only be created if there is no xlink attribute.
	CITYGML_LOG_ERROR(m_logger, "CityGMLElementParser::endElement called on unbound " << elementParserName() << " object for element <" << node << "> at " << getDocumentLocation());
	throw std::runtime_error("CityGMLElementParser::endElement called on unbound CityGMLElementParser object.");
	}

While I understand why it's going into this condition, I'm not completely sure why it has to throw an unrecoverable error. Isn't there a different path it can take?

Or is it because xlink is not supported?

If I wanted to work on this, what is the workaround for this?