The phrase "Doesn't do nothing" is often used when a person actually means, "Doesn't do anything."
Should I avoid using this phrase? Generally, I would, but in my context, I want to negate what I had said previously.
I wrote that clicking a button does nothing. Later on, I found out that it does do something, so I want to write that I was wrong and that it, in fact, doesn't do nothing but does x.
Is it okay to write it like this or should I avoid it because people commonly misuse this phrase to mean the opposite?