If a channel entry uses a file that has been uploaded that contains special characters (I've noticed this so far with brackets and commas), it now produces a PHP error saying the file does not exist. The error shows that the file is being searched for with a percent encoded name, so the original file can't be found.
For example, if an image was uploaded called 'image (large).jpg', the PHP error says 'File /var/www/.../image %28large%29.jpg does not exist'.
I think this error was introduced with EE v2.10.0, as these images were used previously with no error. Upgrading to v2.10.1 doesn't change anything.
Has anyone else encountered this error? The only way around it I've found is to download, rename, and reupload any files with special characters in, which is hardly practical.