Old notifications are triggered when adding a remote calendar

[Stephen Eisenhauer]

See first: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/848968

The same issue described in #848968 is present on Ubuntu 15.04 (vivid) with the out-of-the-box evolution 3.12.11-0ubuntu3, 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.

[JP Vossen (jp-jpsdomain)]

Same thing for me on 3.10.4 on Mint 17 (more-or-less Ubuntu 14.04). Started in 2008, I'm up to 2010 after 20-30 mins...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.