I am currently booked on CX105 from HKG to MEL. I have since seen that this flight stops in ADL on the way to MEL

If I change to the QF flight the next morning, which is still within my 24hour window to avoid airport taxes, do I need to pay the $125 reticketing fee?
The ticket is AA issued, and I wouldn't be changing the cities- still HKG-MEL.