That's what I saw too, at first glance I thought it might be a seed, but upon looking closer, clearly, it's a nanner. But that still could well indicate you've got a few feminized seeds in there some where, and, if so, there going to be hella good seeds.
I would look below that spot for any. Surely, any pollination that could have been created in buds that fine, were 100% stress induced, (or from another source) if any at all. But I doubt it. That nanner looks sterile to me, probably contained zero pollens.
