Fix: 'hyperopt_adaptive' example keeps fake 'best_hyperparameters' (#883)
Fix: 'hyperopt_adaptive' example keeps fake 'best_hyperparameters' (#883)


richardliaw/ray,robertnishihara/ray,richardliaw/ray,robertnishihara/ray,pcmoritz/ray-1,alanamarzoev/ray,robertnishihara/ray,Wapaul1/ray,pcmoritz/ray-1,ujvl/ray-ng,ray-project/ray,atumanov/ray,richardliaw/ray,richardliaw/ray,pcmoritz/ray-1,stephanie-wang/ray,richardliaw/ray,atumanov/ray,atumanov/ray,stephanie-wang/ray,atumanov/ray,alanamarzoev/ray,atumanov/ray,alanamarzoev/ray,stephanie-wang/ray,ray-project/ray,pcmoritz/ray-1,ujvl/ray-ng,ray-project/ray,stephanie-wang/ray,ray-project/ray,stephanie-wang/ray,ujvl/ray-ng,pcmoritz/ray-1,Wapaul1/ray,stephanie-wang/ray,robertnishihara/ray,pcmoritz/ray-1,ray-project/ray,Wapaul1/ray,Wapaul1/ray,pcmoritz/ray-1,Wapaul1/ray,ray-project/ray,richardliaw/ray,ray-project/ray,robertnishihara/ray,stephanie-wang/ray,ray-project/ray,robertnishihara/ray,robertnishihara/ray,alanamarzoev/ray,atumanov/ray,pcmoritz/ray-1,stephanie-wang/ray,stephanie-wang/ray,atumanov/ray,alanamarzoev/ray,robertnishihara/ray,atumanov/ray,ujvl/ray-ng,alanamarzoev/ray,Wapaul1/ray,richardliaw/ray,robertnishihara/ray,richardliaw/ray