2, i log them for the same time. i use huckleberry, and in the notes of the active pee i write “while changing” xx
I just log as one wet nappy. As I don’t view it how many times he’s peed it’s just what’s in the nappy that I’m changing. Viewing it that way, I’ve still only changed one nappy. Done it this way with my daughter also. Suppose it depends what your app is like and how you like to track x
If the first nappy had a wee, and then the baby pees again during the change, or immediately in the new one, I record it as two times.