don't remove pending downloads

oml/item/scan.py

@@ -201,6 +201,8 @@ def run_scan():
         if gone:
             for id in gone:
                 i = Item.get(id)
+                if i.info.get('mediastate') == 'transferring':
+                    continue
                 path = i.get_path()
                 if not path or not os.path.exists(path):
                     logger.debug('cleaning orphaned record %s %s', i, path)