When using experience replay, why don't you update Q_target?

[Zixin-Tang]

# Recompute prediction value and label for replay buffer
if sample_primitive_action == 'push':
    trainer.predicted_value_log[sample_iteration] = [np.max(sample_push_predictions)]
    # trainer.label_value_log[sample_iteration] = [new_sample_label_value]
elif sample_primitive_action == 'grasp':
    trainer.predicted_value_log[sample_iteration] = [np.max(sample_grasp_predictions)]
    # trainer.label_value_log[sample_iteration] = [new_sample_label_value]

@andyzeng