i contacted bonnie.this was their responce.dear mr. rogers thank you for contacting bonnie plants.bonnie plants has had a couple of cases of this this year.that has been identified as the fatalii pepper,which is a close cousin to the habanero and is simular in both heat and taste.
william...
i have two of the bonnie worlds hottest habaneros.when they started fruiting it obvious they were not habs.i emailed bonnie ask a pro.they told me it was a fatalii.mystery solved.