Comment 14 for bug 848968

The same issue described here is present on Ubuntu 15.04 with the out-of-the-box evolution 3.12.11, with slightly different steps to trigger it:

1. Opened Evolution
2. Switched to Calendar view
3. Right-clicked in the calendar list and chose "New Calendar"
4. Selected "On The Web"
5. Provided an iCalendar URL (from a Google Calendar with 1+ year of events)
6. Cleared the "user" field
7. Clicked "OK"

OSD notifications were immediately enqueued for seemingly all of the calendar's past events, starting with the oldest, which were all displayed one-by-one.

Two things wrong here:

1. There is no useful reason to trigger a notification for a past event (*maybe* events in the last hour would be relevant).
2. Events fetched from a remote calendar during an initial download should probably be exempt from various triggers/hooks that cause things like notifications and reminders to be processed. This might be moot if the previous point is addressed.

Copying this comment into a new bug ticket since this might be considered a new case: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/1480446