[Tickets #15117] Upon accepting calDAV invitation in thunderbird, kronolith 'hijacks' the event: duplicate invitations with swapped organizer role are sent to all attendees

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Ticket URL: https://bugs.horde.org/ticket/15117
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  Ticket             | 15117
  Created By         | miyu at pokemail.net
  Summary            | Upon accepting calDAV invitation in thunderbird,
                     | kronolith 'hijacks' the event:
                     | duplicate invitations with
                     | swapped organizer role are sent
                     | to all attendees
  Queue              | Kronolith
  Version            | FRAMEWORK_5_2
  Type               | Bug
  State              | Unconfirmed
  Priority           | 3. High
  Milestone          |
  Patch              |
  Owners             |
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miyu at pokemail.net (2022-08-04 22:19) wrote:

Please see ticket 13664.

Upon accepting a calDAV event invitation in an IMAP client on windows  
(thunderbird, outook) all the attendees receive notifications that you  
are the organizer, 'hijacking' the meeting.

This is still happening with Thunderbird 91.11.0 and Cpanel 104.0.7
Cpanel claims to be using kronolith here:  
https://docs.cpanel.net/knowledge-base/webmail/guide-to-horde-data-behavior/

Test it with gmail calendar invites. Upon accepting invites in
thunderbird linked to kronolith caldav the duplication of invites and
swapped organizer role occurs.

I can't use cpanel/kronolith for business/professional use as a  
result. I believe this deserves high priority. Ticket 13644 was never  
resolved, and if it was then open this as a new bug.