Recurring Google instances are being treated as exceptions

[phw198]

v2.11.1

As reported by #1796 #1983 #2024.

When syncing an Outlook recurring series with exceptions, OGCS can retrieve all the recurring instances in order to identify which one needs updating to make it a matching exception. However, when it does this, it adds all the instances to the cached exceptions - this then severely affects performance for series that contain many instances (eg daily recurring for several years). It also is not restricting the instances to just the date range being synced.

[phw198]

📦 This should now be resolved with hotfix v2.11.1.2.zip (see instructions for applying).
      CRCs: Zip = 6525FBCB Exe = 605966C1

@mayonezo @HenrikJanPersson @mjlipton
If you are still encountering slow sync and log entries with something like This is a recurring Google event with <100s> exceptions in the sync date range, please let me know how it goes with this hotfix.

[HenrikJanPersson]

Thanks @phw198 The sync went so much faster for me now. I will let you know if I notice any other changes. Again, your efforts are much appreciated!

[mayonezo]

I don't see the exact same issue anymore, because the faulty event was replaced. I do still have similar events in my calendar, though. I did get issues with those in the past, so might be worth a try.

First sync with the hotfix applied seems to have finished successfully.