Board Thread:Support Requests - Community Management/@comment-5907266-20141008151055/@comment-1038387-20141008154732

The "image.jpg" seems to be a standard on some upload form. I've protected that from being uploaded multiple times, but it still gets uploaded. If you're using an image with that name, rename it to something else.

It is possible to disable the Replace function for non-admins, though. You'd have to contact staff for that.