Ensure torrent_ids is a list

If torrent_ids is created from filter_dict it is a tuple. This results
in an error when attempting to remove a torrent_id from torrent_ids
later on in 'leftover filter args' and 'filter_state_active()'.

deluge/core/filtermanager.py

@@ -130,8 +130,8 @@ class FilterManager(component.Component):
                 filter_dict[key]  = [value]
 
 
-        if "id"in filter_dict: #optimized filter for id:
-            torrent_ids = filter_dict["id"]
+        if "id" in filter_dict: #optimized filter for id:
+            torrent_ids = list(filter_dict["id"])
             del filter_dict["id"]
         else:
             torrent_ids = self.torrents.get_torrent_list()