The 2021-11-?? date was the day the train was scheduled to be serviced (so the intention of the code was to brick the code after the service). Only by random ch

The 2021-11-?? date was the day the train was scheduled to be serviced (so the intention of the code was to brick the code after the service). Only by random chance it didn't work, because the train was in maintenance a bit longer, and the code didn't trigger in January 2022 because of the date checking bug.