The easiest solution to the answer is to read a few papers written by the scientist and botanist Dr. D.R.Hershey. There are many "ifs" to the question of green light causing an interruption of flowering. He is internationally known as an expert in this field.
1. The plant must be capable of "seeing" a weak green light. Some do. This fact is inescapable. Of course, that means some don't.
2. The amount of light would have to be enough to trigger a chemical reaction in the plant. Again, this varies with strain and growing methods.
3. If you want to experiment with something that took you two months to grow, then by all means, put some green lights in your grow room. You may have any reaction to no reaction at all.
4. The plants could be slightly smaller or less potent. How would you know if they were or not unless you used an control group under conditions equal in all other ways?
5. The plants could have as little as one seed or a hundred if it hermied.
I agree with Hick. When your growroom lights are off, stay out of the room and leave it completely dark. Why do otherwise? To screw around in a dark growroom just doesn't make sense. It's a matter of planning. Plan things so that you don't have to go into the growroom during the dark cycle.
Otherwise, it's an experiment that you might regret. No one would be foolish enough to think that no strains can be hurt by the green light in a growroom during a dark cycle. Dr. Hershey has proven that green light can be seen and used by some plants. It's no longer a question of fact.
I'll keep mine as dark as can be and let you all play around in the dark with your green lights. Hhaahahahahahahaa.
I can't believe this one keeps rearing it's head.