CodeIgniter: “The filetype you are attempting to upload is not allowed.”

[eluser]Narf[/eluser]
It's good to see at least somebody knows that there's nothing more that can be done on CodeIgniter's end, but as I commented on the linked bug report - it's not fair to blame it all on PHP either. Even if there is a bug in file_info(), chances are that it would be relevant in 1% of the cases.