Index: kernel/db/dbitem.php
===================================================================
--- kernel/db/dbitem.php	(revision 15454)
+++ kernel/db/dbitem.php	(working copy)
@@ -535,17 +535,18 @@
 	 */
 	public function processUploads($id = NULL)
 	{
+		$changed_fields = Array ();
 		$uploader_fields = $this->_getUploaderFields();
 
 		foreach ($uploader_fields as $field) {
 			$formatter = $this->Application->recallObject($this->GetFieldOption($field, 'formatter'));
 			/* @var $formatter kUploadFormatter */
 
-			$this->SetDBField($field, $formatter->processFlashUpload($this, $field, $id));
+			$changed_fields = array_merge($changed_fields, $formatter->processFlashUpload($this, $field, $id));
 		}
 
-		if ( $this->GetChangedFields() ) {
-			$this->Update();
+		if ( $changed_fields ) {
+			$this->Update(null, array_unique($changed_fields));
 		}
 	}
 
Index: kernel/utility/formatters/upload_formatter.php
===================================================================
--- kernel/utility/formatters/upload_formatter.php	(revision 15446)
+++ kernel/utility/formatters/upload_formatter.php	(working copy)
@@ -279,7 +279,7 @@
 	 * @param kDBItem $object
 	 * @param string $field_name
 	 * @param int $id
-	 * @return string
+	 * @return Array
 	 */
 	public function processFlashUpload($object, $field_name, $id = null)
 	{
@@ -292,7 +292,7 @@
 		if ( !$files_info ) {
 			$this->Application->RemoveVar($object->getFileInfoVariableName($field_name, $id));
 
-			return $value;
+			return Array ();
 		}
 
 		$files_info = unserialize($files_info);
@@ -324,8 +324,13 @@
 		}
 
 		$this->Application->RemoveVar($object->getFileInfoVariableName($field_name, $id));
+		$object->SetDBField($field_name, implode('|', $live_files));
 
-		return implode('|', $live_files);
+		if ( $object->GetOriginalField($field_name, true) != $object->GetField($field_name) ) {
+			return Array ($field_name);
+		}
+
+		return Array ();
 	}
 
 	/**