Haha another revival. Cloning from a flowering plant is no problem. There will be a delay before it reverts to vegging though. But if you are trying to save genetics, yes it will work and no the quality will not be compromised.

Some growers say that if it is 5 weeks into flowering it will take ~5 weeks to revert to vegging (not sure if this includes the 2 weeks to get roots going) .

I have taken a cutting from a Puna Budder that was basically just a chunk of bud. It rooted in 2 weeks and took about 5-6 weeks before healthy vegetative growth was restored. It became a big and beautiful plant and behaves normally.