Which Of These...?

Day 359: Which of these objects is unlike the others? Or more to the point, why is it different? I was not expecting to find a 1" diameter berry on my hardy kiwis when I went out to pick a snack yesterday, but now that the leaves are beginning to fall, it's easier to see the fruit. Yes, I'm still learning the Art of the Kiwi, and have discovered that the berries come readily off the vine when they're ripe, even dropping to the ground of their own accord. Last year, I figured out that they don't really start to ripen until the leaves begin changing colour. This year, I noticed that the stems of the fruit start to wither and turn brown to signal their readiness for picking. But what happened here? Where did the big berry come from? You may recall that I originally planted two "Issai" vines, purportedly self-fertile, but not very interested in doing their job. Consequently, I planted a male/female pair of "Clark" and "Anna" so that I would at least stand some small chance of getting fruit, and hoping that "Clark" might also fertilize "Issai." I think it did. I think this one larger fruit is from "Issai." Okay, time for a re-think. I will abandon my plans to remove "Issai" and will see if I can encourage a leg of "Clark" to intertwine with it. And I'm wondering if, as more leaves drop, I might find a few more "Issai" bonuses.