I have not recently judged a car that would have used a group 22, so have not made any notations. I have not heard any talk about the early batteries being reproduced recently.
How could we know unless you looked for date codes on a battery tray or maybe had a Marti Report on hand?
My heavily loaded with options Coupe came with a 22F and the date code found on the tray confirms it. Maybe it's an anomaly of sorts, I don't know because I would have assumed that a car with factory installed Select-Aire, even as a 289, would have been originally equipped with a Heavy Duty Battery but a H.D. battery isn't specified on the Marti Report either.
I USED to think it was because it was a Thermactor car and there wasn't enough room for a 24F and to have the filter canister for the Thermactor in place but earlier in this thread, Bob mentioned a 24F would fit on a California car. I haven't yet seen images of a 24F in place with Thermactor but I no reason to doubt his statement on the subject.