File Upload Library and special characters

Hi,

I have a problem with the file upload library. When I submit a regular file (TEST.pdf) it uploads just fine and the file is stored and accessible as expected as "TEST.pdf".

However whenever I have a special character in the filename (i.e. TÄST.pdf) it uploads just fine and is stored BUT under a different name. TÄST.pdf will be stored as täst.pdf. However in the File Array the name is stored properly as täst.pdf. How can this be and what possible fix do I have for that?