origin_station routes filtering doesn't work

[AdriDevelopsThings]

e.g:
look at the following train_vehicle response:

{"number":302,"name":"Hansestadt Lübeck","train_type":"ICE","building_series":403,"trips":[{"group_index":0,"vehicle_timestamp":"2022-08-01T20:03:20.000Z","trip_timestamp":"2022-08-01T12:00:54.000Z","initial_departure":"2022-08-02T05:55:00.000Z","train_type":"ICE","train_number":1006,"origin_station":"München Hbf","destination_station":"Berlin Hbf","stops":[{"cancelled":0,"station":"München Hbf","scheduled_departure":"2022-08-02T05:55:00.000Z","departure":"2022-08-02T05:55:00.000Z","scheduled_arrival":null,"arrival":null},{"cancelled":0,"station":"Nürnberg Hbf","scheduled_departure":"2022-08-02T07:02:00.000Z","departure":"2022-08-02T07:02:00.000Z","scheduled_arrival":"2022-08-02T06:58:00.000Z","arrival":"2022-08-02T06:58:00.000Z"},{"cancelled":0,"station":"Erfurt Hbf","scheduled_departure":"2022-08-02T08:11:00.000Z","departure":"2022-08-02T08:11:00.000Z","scheduled_arrival":"2022-08-02T08:09:00.000Z","arrival":"2022-08-02T08:09:00.000Z"},{"cancelled":0,"station":"Halle(Saale)Hbf","scheduled_departure":"2022-08-02T08:40:00.000Z","departure":"2022-08-02T08:40:00.000Z","scheduled_arrival":"2022-08-02T08:38:00.000Z","arrival":"2022-08-02T08:38:00.000Z"},{"cancelled":0,"station":"Berlin Südkreuz","scheduled_departure":"2022-08-02T09:46:00.000Z","departure":"2022-08-02T09:46:00.000Z","scheduled_arrival":"2022-08-02T09:44:00.000Z","arrival":"2022-08-02T09:44:00.000Z"},{"cancelled":0,"station":"Berlin Hbf (tief)","scheduled_departure":"2022-08-02T10:06:00.000Z","departure":"2022-08-02T10:06:00.000Z","scheduled_arrival":"2022-08-02T09:51:00.000Z","arrival":"2022-08-02T09:51:00.000Z"},{"cancelled":0,"station":"Berlin-Spandau","scheduled_departure":"2022-08-02T10:16:00.000Z","departure":"2022-08-02T10:16:00.000Z","scheduled_arrival":"2022-08-02T10:14:00.000Z","arrival":"2022-08-02T10:14:00.000Z"},{"cancelled":0,"station":"Hamburg-Altona","scheduled_departure":null,"departure":null,"scheduled_arrival":"2022-08-02T12:03:00.000Z","arrival":"2022-08-02T12:03:00.000Z"}]}]}

The destination_station is Berlin Hbf but the stop has the name Berlin Hbf (tief)so filtering is not available.
Berlin Hbf and Berlin Hbf (tief) are equal so the filtering algorithm needs a system to understand this equal stations.