We're on CPC-53.
My understanding is that this is a sexual offence where there's a mandatory minimum for children under the age of 16—if the victim is under 16—and there's no mandatory minimum if the victim is over the age of 16. What is being proposed is two years less a day for those over 16, but because there's a mandatory minimum, you didn't change the clause for those 16 and under, and you've left the summary offence at 18 months instead of two years less a day.
The Conservative amendment would conform the two years less a day for both under 16 and over 16, especially given that it would be deemed to be a more serious offence if the person was younger, which is why there's a mandatory minimum there and not for over 16. I think that's what the amendment is.