Comment 4 for bug 234231

Hi, todd
I verified the issue in moblin-applets 0.66-0ubuntu5, here is the result:
1. Non photo files with extension name other than ".jpg", ".jpeg", ".gif", ".png", ".bmp" can not be added into wallpaper list, it's correct and the issue is fixed.
2. Fake photo files (non photo files with extension name ".jpg", ".jpeg", ".gif", ".png", ".bmp") can be added into wallpaper list, it's wrong behavior, it should be fixed.
E.g. change a file test.txt to test.bmp, the file be added into wallpaper, and shows "Thumbnail loading..." under the file in the wallpaper list.
3. Photo files with extension name other than ".jpg", ".jpeg", ".gif", ".png", ".bmp" or without extension can not be added into wallpaper list, it's still wrong behavior, it should be fixed. For this issue, I file a new bug #235382.