This activity is used to unreserve a checked out document. The File Status of the document will be set to Checked In or blank based on whether a file exists in the repository before checking out a file for that document.
If the file has been uploaded to the system before, the File Status of the document revision is changed to Checked in. The downloaded file with the changes will be discarded. If no file has been checked in to the document before, the file status will be set to blank.