ok, so with the reveg try putting some cling film over the ends that are open where the stems where cut, that might stop the leaves from dying, ive never had to do this so cant say if it helps or not but it will stop any mold or other problems occuring due to the stem been open,
if you flushed the plant or stopped feeding a coupel of weeks before harvest then you need to start a weak feed for the first few waterings so the plant has got some nutrients to take in, so use seedling stage feed or a veg 1 stage feed at half the stated dose or half of what you normally give it, then that will keep the plant fed while it revegges,
every time i reveg a plant or clone this is what happens no matter what strain or how big or small the clone,
week 1, nothing happens apart from some of the bigger leaves may die, its the buds that will produce the new growth.
week 2, the buds will start growing new leaves, these will be badly deformed and start off as single bladed leaves that look nothing like cannabis leaves and are often curly and end up looking like a snail, that spiral effect if you get what i mean,
week 3, the plant is now back in veg and new leaves grow and look like regular cannabis leaves, they might be slightly deformed like 3 bladed leaves with 1 blade on it looking different to the other 2 but this is fine and is what a reveg plant does.
after that you have got a monster cropped plant and expect crazy growth and many many branches, i threw out at least 60 cuttings with my last reveg plant and 2 bags of leaves, but yields are up about 40% compared with the first harvest for the same size plant, let it get bigger and yield will be bigger still, but you will have more branches then you know what to do with, miwa also does the reveg and i do at least 1 per grow and take several flowering clones.
not had a reveg plant or clone die on my yet, touch wood that is,
so go with a very weak nute feed at half dose on veg 1 stage feed, then just let it do its thing, as long as its under a veg schedule such as 20-4 or even 24-0 for the first 3 weeks then it will go back into veg in around 3 weeks time, i use either 24-0 then drop to 18-6 or 17-7 when its back in veg or i use 20-4 then drop to 18-6 or 17-7 again when its back in veg around week 3.
so if you flushed or stopped feeding nutrients before harvest then go with half dose at veg 1 feed, if you used flowering nutes up till harvest and didnt flush or didnt stop feeding then use 1/4 strength veg 1 feed each time you water the plant, make sure you dont over water at this stage as the plant is not going to be taking in much so its very easy to over water as the plant is in a bigger pot than it needs to be in.