SAXParseException in the language server trace when editing an .rng file

[datho7561]

If you edit a RelaxNG file that uses the XML syntax, and the document becomes invalid, eg:

<grammar xmlns="http://relaxng.org/ns/structure/1.0"
  datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <start>
    <ref name="root-element"/>
  </start>
  <define name="root-element">
      <element name="root-element">
        <ref name="asdf"></ref>
      </element>
  </define>
  <div>
    <div>
      <define name="asdf">
        <attribute name="child"></attribute>
        <element>
      </define>
    </div>
  </div>
</grammar>

(note the unclosed <element>)

Then a SAXParseException is output in the language server trace. It would be nice if this Exception didn't appear, since having an invalid XML file is expected when you are editing it.

[datho7561]

I think I already filed this bug, so if someone finds that issue, please link it here and I'll close this one