I didn't have to do that. Erminig recognized the events as if I had never deleted the entry in googleIDs.

Reran --sync-calendars and a couple of ordinary syncs, but the existing data still won't get synced. The data in the N9i00 calendar is synced to my N900 calendar via MfE (from another Exchange server than the one mentioned in an earlier post). So I'm trying another approach - chaning MfE to sync to the calendar created by Erminig when I did --sync-calendar from my main Google calendar.

That's why I love this device.