The source of the Turinabol infraction post DC 2 fight was never determined, and he received a reduced sentence for substantial assistance (snitching). Then, after they reduced his sentence, he kept pissing hot for residual M3 metabolites. They determined this was residual "pulsing", and not evidence of "re-ingestion". Jones fans have been deliberately confusing Novitsky's statements about his pulsing to try to say the second infraction was excused... but it wasn't. Tl;Dr; Jones has pissed hot so many times that it's hard to keep track of the timeline.