@Override
	public String generateTOCItemTag(LinkDatabase linkDatabase, boolean isInlineTag, int indentLevel) {
		String indent = INDENTS[indentLevel];

		StringBuilder buildy = new StringBuilder();
		buildy.append(indent).append("<!-- WARNING: Unresolved reference ID\n");
		buildy.append(indent).append('\t').append(generateXMLString()).append("\n");
		buildy.append(indent).append("-->");
		return buildy.toString();
	}
Overridden, as if we get called, then something is in an invalid state, so generate special output
Ghidra/Framework/Help/src/main/java/help/validator/model/TOCItemReference.java