Last modified: 2007-06-14 20:10:41 UTC
Images have the first letter case-insensitive.
As a result, on wikis with $wgCapitalLinks=false; you can arrive at a different page for the image, with the first letter lowercase, with the image, with no image history, and with edit & upload links, even when the image is not uploadable because the Uppercase image is protected
IMHO when viewing the image or image talk namespaces, it should redirect to the upper case one, as if $wgCapitalLinks=true; whatever the site preferences are.
This appears to have been a side-effect of a bug which caused incorrect handling of lowercase images. The two are now properly shown different.