I had it happen for the first time last year. Bred a female to a Lesser, she bred all season then laid egg's 7 of them. When they hatched turned out they were Mojo's after looking back through my records it seems I had bred her the year before to a mojo..So there you have it.

that's why females that get a male recessive get the next year off to make sure that they produce what I think they are.