Lunar Rays During Flowering

This question just popped into my head and I was wondering if anyone has any theories or an answer. When growing outside, what happens to your 12 hour dark period if it is a full or very bright Moon? You know sometimes it is so bright it casts shadows. Does Moon light interrupt the constant dark period? Is the light of a spectrum that the plant does not see? I know the Sun puts out way more lumens than any lamp ever could so a slow down, stall, or slight yield loss is most likely un-noticed. Has anyone ever done a test of this?

It doesn't affect it one bit. My first grow guide said, about growing indoors, "if you must enter your grow-room during the night cycle, don't allow any more light to fall on the plants than would under a bright full moon." Or something to that effect. Obviously, full moons happen, and cannabis was (originally) a wild plant, and it thrived over the millenia without our help and/or protection from the moon... in other words, it's natural.