eye of gnome cannot open image file with wrong extension

Binary package hint: eog

Eye of gnome fails to open a jpg image file, if file-extension is .png, failing with the following non-friendly error-message:

"Could not load image 'image.png'
Fatal error reading PNG image file: Not a PNG file"

However, EOG has no problems opening the file if the file-extension is completely removed. This inconsistent behaviour should be fixed, and from a users point of view I would say the best solution is to simply open the file as any other file, possibly with a message to the user that the file-extension on the file is wrong (maybe even suggest to change the file extension to the correct one). In previous versions ubuntu/gnome has been good at ignoring file extensions and checking file content to determine what sort of file it is.

To reproduce error:
- rename a jpg-file, image.jpg to image.png
- Browse to the file-location in nautilus (nautilus will correctly display a miniature of the file, regardless of file extension, if miniatures are enabled )
- in nautilus: double click the file, or right-click and select "Open with image viewer"
- or in a terminal, type: eog /path/to/image.png

Platform:
Description: Ubuntu 10.04.1 LTS
Release: 10.04
Package:
Installed: 2.30.0-0ubuntu1

regards Jonas