Fixed: Empty imdb list selecting all movies without an imdbid

Fixes Radarr/Radarr#2428

Author: galli-leo

app/Helpers/Helper.php

@@ -23,6 +23,11 @@ public static function get_from_imdb_py($path, $selection, $rememberMinutes = 60
 
           $fullIds = array();
 
+          if (count($fullIds) == 0)
+          {
+              return [];
+          }
+
           foreach ($ids as $id)
           {
               $fullIds[] = rtrim(str_ireplace("/title/", "", $id), "/");