Allow showing a diff from "Uncommitted Changes Found"

If you have a project under Git version control with a remote set up, and then:

1. Modify a file in your working copy but do not commit the change
2. Start Git > Pull

then a dialog with the question what to do with these changes appear.

Currently you can only see the affected files if you press "Show Details", but I think it would be useful to be able to directly open a diff to actually see the changes and then decide what to do.