# (Number Sign) in filename causes Page Not Found

This is probably more of a Clean URLs issue but I thought I'd try here first. May be easier to patch here.
When a file is uploaded with a # sign in the file name (IE: "myfile #1.pdf"), the link goes to page not found. If the # sign is removed (IE: "myfile 1.pdf") the file loads fine.

Easy fix is probably strip out the # sign on upload.