min_date doesn't seem to work?

I was trying to find all clues after e.g. 2022.

https://jservice.io/api/clues?min_date=2023-01-01 is what I searched.
I also tried https://jservice.io/api/clues?min_date=2023
I'm seeing results from 1993 and 2000.

Either I am not doing the right date formatting, or something is broken.