User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.53 Safari/536.5 Steps to reproduce: I opened a recurring event and changed it to a different time. Actual results: I was prompted to edit just "This Occurrence", or "All Occurrences". The meeting has permanently moved to a different time, so I chose "All Occurrences". This changed all of these events including ones that are in the past. The same thing happens if a recurring event is deleted. Expected results: In other calendar programs, we would have a 3rd option, to make this change on "All Future Occurrences". Otherwise, I will have to change all occurrences of this event forever.
"All Occurrences" modifies all occurrences -> correct behavior, no bug. "All Future Occurrences" -> existing bug 320178. You can workaround currently only by editing the recurrence rule and setting an until date that ends the repeating event at the specific date (== keep past occurrences unchanged). Afterwards create a new repeating event starting at the specific date (== the changed future occurrences).