Unless the genetics are predisposed to readily going hermie, you shouldn't worry about a few hours of extra light. And it takes some pretty major light leaks to be detrimental. It's not that easy to reverse stable genetics, and even if you caused a nanner or 3, or even a dozen it's really nothing to be all that concerned about, because feminized pollen isn't anything like male pollen. Don't worry about it, spend your energy on things that matter