Add organizer to Attendees before handling exceptions

* Exceptions take a copy of Attendees when they are created, but
  we weren't adding the organizer to Attendees before exceptions
  were parsed
* Fix this by adding the organizer just before exception parsing
* If there aren't any exceptions, we add the organizer as before

Bug: 2585817
Change-Id: Ie894682977e38a55d975135c8fc2fd8f2d4b1365
1 file changed