File Download Names have md5 added to filename

File attachments to Events (and possibly other things, I am new to this) have the md5 added to the filename when you download them. Instead of My_Pdf.pdf you get My_Pdf_asdf146ajshadnvkia877a7sdf7ads7f.pdf.

You can see the problem here: https://www.nasi.org/civicrm/event/info?reset=1&id=6 Well, that page might be a bad example as it also has the missing "." problem in the filename (and I also am working on a fix so as soon as it is implemented you won't be able to see the problem).

To fix this I changed I edited line 82 of CRM/Core/Page/File.php from:

CRM_Utils_System::download( basename( $path ), $mimeType, $buffer );

to:

require_once 'CRM/Utils/File.php';
CRM_Utils_System::download( CRM_Utils_File::cleanFileName(basename( $path )), $mimeType, $buffer );

This solves the problem. Not sure if this solution will cause any problems elsewhere.