here's what i've done and it worked for me.
when you harvest don't strip the plant of all its buds or any fan leaves. take the top colas and what you think is good for your purposes and leave a nice amount of leaves/bud on the plant. buds photosynthesize as well so use them.
this is what going to happen. the plant gets harvested and goes into shock. the leaves and bud will allow the plant to photosynthesize once more. the biggest mistake after harvesting and re-vegging is over watering. this will rot the roots and its game over. so you go super light on the watering and start off with a nice light solution of your nitrogen additive. a great product is "green stay". i dunno if you can get that in AU but its just a blessing for plants that need N or are stressed. if not then use a normal vegetative growth enhancer.
go light on these things and only water when its begging for it. you want the plant to reach out and grab available nutes and reform roots. as the seasons change you will produce new shoots and the plant will be in veg state again. i'd recommend transplanting into a larger pot if you can for the next go around.
dont do this 2 much though or the plant will sprout legs, pick itself up and come kick your ass for abuse!!!
i'd get clones as soon as its has vegged again.
cheers mate and good luck!