As far as reverting to veg when you transplant outside someone else will have to tackle that one.

When you say that they are already flowering, what do you mean? Are there a couple pistils and a small calyx at some nodes, or are there clusters of them at the nodes and top?

My guess is that you are seeing preflowers emerge as your plant goes from the clone stage to rooted vegetative plant. You have to remember that your clone is genetically as old as the mother, and they come off the plant with enough maturity to be directly flowered once rooted, of course yield will suffer, but it's a great way to fill a short space. It is perfectly normal to see pistils at the nodes of vegging plants, as long as they aren't coming in clusters you should be good.

When they are talking about H2o on your buds, they are referring to fully formed buds. The reason is that the flowers of cannabis are dense and if they are drenched and not allowed to dry, mold and rot can become issues for you.

Getting "some water" on buds isn't cause for panic by itself. If you feel you did something negative, just monitor where it happened and post any changes in status on here. I'm sure someone will come along to help.