Editing recurring event in evolution results in duplicate entry in clock applet

Binary package hint: gnome-panel

I have a recurring event scheduled in my evolution calendar. If I edit one instance of this event, to say change the time for that one instance alone, the clock applet shows two entries -- an entry with the new time and the entry with the old time. The change is listed correctly in evolution, so the problem seems to be specific to the clock applet (or maybe the problem actually lies with evolution-data-server, please reassign if necessary).

Steps to reproduce:
1. Create recurring event in evolution calendar.
2. Go to one entry for that recurring event and edit time for that one entry alone.
3. Clock applet will show that one entry twice -- once with old time and once with new time.

Expected behavior: entry with old time should be removed from clock applet.