Issue Description
CalendarEvent/set lists organizerCalendarAddress: null in the updated object for an event that has an organizer, even when the update doesn’t touch the organizer. The stored event is fine: CalendarEvent/get right afterwards returns the same organizer address as before.
I see it for an attendee answering an invitation on their own copy, and for the organizer renaming the series. Both updates were sent with sendSchedulingMessages: true.
A client that applies the properties in updated to its cached copy, ends up with an event without an organizer until it fetches the event again.
Expected Behavior
The organizer didn’t change, so it shouldn’t be listed in updated. The attendee’s update should be answered with null for that id, and the organizer’s rename with only {“sequence”: 1}. v0.16.25 answers null for both.
Actual Behavior
Attendee's answer:
"updated": {"f": {"organizerCalendarAddress": null}}
Organizer's rename:
"updated": {"2": {"sequence": 1, "organizerCalendarAddress": null}}
CalendarEvent/get of either event with properties [“organizerCalendarAddress”] returns “mailto:[email protected]” before and after.
Reproduction Steps
Two accounts on the same server: ver1 (organizer, account ba, calendar b) and ver2 (attendee, account bb). All requests use the core and calendars capabilities.
- As ver1, create a weekly meeting and invite ver2. The response gives the event id, here 2.
- As ver2, find the copy the invitation created with CalendarEvent/query and a uid filter. Here its id is f.
- As ver2, accept the invitation. The response lists organizerCalendarAddress: null.
- As ver2, CalendarEvent/get of f still returns the organizer.
- As ver1, rename the series. The response lists sequence 1 and organizerCalendarAddress: null.
- As ver1, CalendarEvent/get of 2 still returns the organizer.
"using": ["urn:ietf:params:jmap:core", "urn:ietf:params:jmap:calendars"]
1. ["CalendarEvent/set", {"accountId": "ba", "sendSchedulingMessages": true, "create": {"e": {
"@type": "Event", "uid": "[email protected]", "title": "sync", "calendarIds": {"b": true},
"start": "2026-11-23T10:00:00", "timeZone": "Europe/Berlin", "duration": "PT1H",
"recurrenceRule": {"@type": "RecurrenceRule", "frequency": "weekly", "count": 4},
"organizerCalendarAddress": "mailto:[email protected]",
"participants": {
"org": {"@type": "Participant", "calendarAddress": "mailto:[email protected]",
"email": "[email protected]", "roles": {"owner": true},
"participationStatus": "accepted", "scheduleAgent": "server",
"expectReply": false, "kind": "individual"},
"b": {"@type": "Participant", "calendarAddress": "mailto:[email protected]",
"email": "[email protected]", "roles": {"attendee": true},
"participationStatus": "needs-action", "scheduleAgent": "server",
"expectReply": true, "kind": "individual"}}}}}, "0"]
<- "created": {"e": {"id": "2", ...}}
2. ["CalendarEvent/query", {"accountId": "bb", "filter": {"uid": "[email protected]"}}, "0"]
<- "ids": ["f"]
3. ["CalendarEvent/set", {"accountId": "bb", "sendSchedulingMessages": true,
"update": {"f": {"participants/b/participationStatus": "accepted"}}}, "0"]
<- "updated": {"f": {"organizerCalendarAddress": null}}
4. ["CalendarEvent/get", {"accountId": "bb", "ids": ["f"], "properties": ["organizerCalendarAddress"]}, "0"]
<- "organizerCalendarAddress": "mailto:[email protected]"
5. ["CalendarEvent/set", {"accountId": "ba", "sendSchedulingMessages": true,
"update": {"2": {"title": "sync ALL"}}}, "0"]
<- "updated": {"2": {"sequence": 1, "organizerCalendarAddress": null}}
6. ["CalendarEvent/get", {"accountId": "ba", "ids": ["2"], "properties": ["organizerCalendarAddress"]}, "0"]
<- "organizerCalendarAddress": "mailto:[email protected]"
Stalwart Version
v0.16.x
Installation Method
Built from source
Database Backend
RocksDB
Blob Storage
RocksDB
Search Engine
Internal
Directory Backend
Internal
Additional Context
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