Where is PFFile saved? <p>I save UIImage as PFFile:</p> <pre><code>let imageFile = PFFile(data: imageData) imageFile?.saveInBackgroundWithBlock({}) </code></pre> <p>This file is not referenced with any PFObject, so what happens to him?</p> <ol> <li><p>This file is saved on my reserved storage (20GB)? </p></li> <li><p>Is there any tool for clean non-referenced files?</p></li> <li><p>If I assign some PFFile to object and replace it by other PFFile after that, first object will be deleted?</p></li> </ol>