Incorrect parsing of quoted-value

[Sense545]

Got this error when using colons and double quotes in a "note"-reply in Google Calendar.
ATTENDEE;ROLE=REQ-PARTICIPANT;CN="Test";X-RESPONSE-COMMENT="test"quoted"string:with-colon":MAILTO:[email protected]
parses as:

{
  params: {
    ROLE: 'REQ-PARTICIPANT',
    CN: '"Test"',
    'X-RESPONSE-COMMENT': '"test&quot'
  },
  val: 'MAILTO:[email protected]'
}

kewisch/ical.js correctly parses and unquotes the value into test"quoted"string:with-colon