USB Creator not detecting partitions if iso image in Desktop

[Luis Alvarado]

When I have an iso image on the Desktop (Might also be any other place that the USB Creator reads automatically), it does not detect any partitions that are not USB on the "Disk to Use" section if I use the --allow-system-internal parameter.

I made a video showing the behavior: http://www.youtube.com/watch?v=8h6ZhAi0k10

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: usb-creator-gtk 0.2.47
Uname: Linux 3.9.4-030904-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
Date: Mon Jun 10 17:44:53 2013
InstallationDate: Installed on 2013-04-28 (43 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: usb-creator
UpgradeStatus: No upgrade log present (probably fresh install)