Get files via FTP: Add filename to result

I'm using the "Get files via FTP" step in a job, and I do NOT want filename added to result. Therefore, I have unchecked the box, "Add filename to result" on the files tab. HOWEVER, even though I save the job with this setting, as soon as I exit and reopen the job, the box is checked again. And the file is added to the result whenever I run the job.

Is there a reason that this is not allowed to be unchecked in this step? I haven't found any documentation that references this feature.

Kettle version 4.4.2-GA.