Outlook: Remove remaining check_existing usage #219
Merged
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This resulted in incorrect calendar entries when creations were already queued and then those registrations were removed before the queue was processed. Since there was no existing entry,
check_existingdid not enqueue the deletions, so at the next task run all those deleted registrations had calendar entries anyway.An easy case where this can happen is someone cloning an event with registrations and then immediately deleting those registrations.