Gnome Screenshot does not work with Zeitgeist if you change the default image viewer to Gwenview

[clockworkpc]

OS: Ubuntu 12.04 completely up to date.
Package: 3.4.1-0ubuntu1

BACKGROUND:

I changed the default application for PNG files in Nautilus to GwenView. (So that when I click on a screenshot it would open GwenView)

What I expected to happen:

1) Take a screenshot with gnome-screenshot
2) Find the most recent file recorded by Zeitgeist to be the screenshot
3) Find the screenshot in the Unity Dash

WHAT HAPPENED:

1) Took a screenshot with gnome-screenshot
2) The screenshot was saved, but not recorded in Zeitgeist
3) The screenshot did not appear in the Unity Dash.

FIX:

Changed the default application for PNG files back to the default Eye of Gnome. (eog)

1) Took a screenshot
2) The screenshot was recorded as the most recent file by Zeitgeist
3) The screenshot appeared in the Unity Dash.