I may have answered this one before - BUT - yes I have tried it - works great.
I had 3 or 4 colas that weren't flushed correctly (or at all?). I put them into a mason jar and filled it with plain cool H2O. I got confusing directions online so what I did was to replace the water daily for 3 days.
Let the soggy mess dry for a week. Lost no potency but many farmers will not want to try this because bud appeal goes away entirely!
I would do this again, but I'd use a larger volume of water and change the water only once.