Alarm search yields too many events

[tobixen]

I have this REPORT query (as per https://www.rfc-editor.org/rfc/rfc4791#section-7.8.5):

<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
  <D:prop>
    <C:calendar-data/>
  </D:prop>
  <C:filter>
    <C:comp-filter name="VCALENDAR">
      <C:comp-filter name="VEVENT">
        <C:comp-filter name="VALARM">
          <C:time-range start="20191010T060100Z" end="20191010T060700Z"/>
        </C:comp-filter>
      </C:comp-filter>
    </C:comp-filter>
  </C:filter>
</C:calendar-query>

And this event on the calendar:

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//python-caldav//caldav//en_DK
BEGIN:VEVENT
SUMMARY:This is a test event
DTSTART;VALUE=DATE-TIME:20151010T080706
DTEND;VALUE=DATE-TIME:20161010T090807
DTSTAMP;VALUE=DATE-TIME:20221024T143714Z
UID:96d4e74a-5398-11ed-a1df-a0510ba5c65c
BEGIN:VALARM
ACTION:AUDIO
TRIGGER:-PT15M
END:VALARM
END:VEVENT
END:VCALENDAR

The REPORT query does yield the above event, but it shouldn't (as the dates searched for is in 2019, while the alarm is in 2015).