#282510::when we upload .png file in the documents ,preview is not displaying...

#282510::when we upload .png file in the documents ,preview is not displaying as well when we download same file it getting corrupted

modules/Documents/models/Record.php

@@ -21,7 +21,7 @@ class Documents_Record_Model extends Vtiger_Record_Model {
 	function getDownloadFileURL($attachmentId = false) {
 		if ($this->get('filelocationtype') == 'I') {
 			$fileDetails = $this->getFileDetails();
-			return 'index.php?module='. $this->getModuleName() .'&action=DownloadFile&record='. $this->getId() .'&fileid='. $fileDetails['attachmentsid'].'&name='. $fileDetails['name'];
+			return 'index.php?module='. $this->getModuleName() .'&action=DownloadFile&record='. $this->getId() .'&fileid='. $fileDetails['attachmentsid'];
 		} else {
 			return $this->get('filename');
 		}