Can an already flowering plant reverse this process?

As mentioned in my previous post I had a couple of clones begin to flower (still in their rockwool cubes) after having them for a day or two. I was told by a grower that when they are this small that this flowering process can sometimes reverse and stop flowering but continue to grow. That seems a little out there but I am new to this so would love some expert opinions or facts! Thanks!

Yep. You can reveg them. It takes a while for them to shift their focus back to vegetative growth, but it's totally doable. Just toss them back under 18/6 or 24/0 light schedule.