I originally posted this on the other site back when I took the picture, and it resulted in a lot of confused comments, especially from Americans, eventually getting removed by overzealous mods. Either way, I promise you that this date does not exist, and has never existed.
To be pedantic, “290223” is not valid ISO 8601.
Two digit years are no longer allowed by the standard.
Because we have to define which century the food goes out of date in?