Jerry is correct.

My example is correct but misleading. I said "PD might be regenerated". Well, it is regenerated but not 100% due to possible alkaline ring opening so I picked a bad example. IDK the amounts of ring opening and regeneration. If you had Dimezone S there, it would be 100% regenerated. PD is partly regenerated and partly hydrolyzed upon oxidation.

That is why I like Dimezone S. It is easier for me to predict.

PE