Originally Posted by
Assplode
Just did this recently, manage to check in my bags when the check in counter was open for the previous flight.
I was on the 9.45pm QR172 and on that day there is an afternoon flight QR168
Tried to move to the earlier flight but was told that the check in agent wasn't able to do it but is able to take my luggage
YMMV
And I assume the bags made it okay on 172. Mine are then continuing from DOH to SYD a couple of hours later.