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Linus Rath
021a67327b
Stalwart 0.16 (0.16.6 to 0.16.23) sends a change of one occurrence of a meeting with that occurrence's SEQUENCE raised, but does not keep the raise itself: in its organizer update code the list of components to raise is shadowed for changes of single occurrences. A later change of every occurrence that does not raise the number again - a new title, another description - then went out with the old number for that occurrence, and the attendee's server refused the whole message as out of sequence. The attendee got the "Updated invitation" mail, but their calendar stayed as it was (live on 0.16.23; 1.0 raises and keeps the number itself). A change of every occurrence that the user as organizer sends to the attendees, of something they see, now raises the SEQUENCE of the series and of each changed occurrence by one, on a series that has changed occurrences. One up from what the organizer's copy holds is at least what the attendees got, and it keeps the series and its occurrences on equal numbers, which 0.16 needs to list an occurrence once. 1.0 raises the number of every occurrence the same way for a change it sends, and keeps a number it would have given: the result there is the same (live).