[korganizer] [Bug 385364] New: Timezone RRULE entry has bot UNTIL and COUNT property

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=385364

            Bug ID: 385364
           Summary: Timezone RRULE entry has bot UNTIL and COUNT property
           Product: korganizer
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: timezones
          Assignee: kdepim-bugs at kde.org
          Reporter: peter.snauwaert at gmail.com
  Target Milestone: ---

Created attachment 108164
  --> https://bugs.kde.org/attachment.cgi?id=108164&action=edit
Example event exported as an ICS file.

Hi,

I am on Opensuse Tumbleweed, KOrganizer version 5.6.1

When creating a new event in KOrganizer (against Nextcloud calendar), some
programs fail to synchronize because the Timezone data for the event holds a
"Standard" timezone which has an RRULE entry that has both an UNTIL and a COUNT
entry. This is apparently forbidden by RFC if I can believe the error message I
get from Outlook CalDav Synchronizer.

This is a recent issue that popped up. Don't know when exactly, my wife started
experiencing the synchronization errors "recently".

This is the entry I copied from an ICS file which causes the problem:

BEGIN:STANDARD
TZNAME:CET
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
DTSTART:19790930T030000
RRULE:FREQ=YEARLY;UNTIL=19961027T030000;COUNT=17;BYDAY=-1SU;BYMONTH=9
END:STANDARD

Don't really see the point of that COUNT=17 to be honest, but then again I
don't know this format.
Would love to see this fixed permanently but I am also wondering if there is a
quick fix (template, setting or file I can change somewhere).

kind regards,
peter

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