title: camel file: infinite loop when file failed to be moved to in-process dir
body: <p>I am using File2 component to process some file in a directory. But if it fails to move file to 'in-process' directory for whatever reason(maybe no permission), the file will be stuck in the directory and will be processed over and over again and fill up the error log. Setting idempotent=true doesn't have any effect.</p>