since it has been posted, can we discuss a little about fasted cardio?

does anybody know of any scientific paper that demonstrate muscle tissue is broken down for energy during fasted cardio? if the person is actively weight-training and having a protein-rich diet, why would the body decide to burn muscle instead of fats?

i believe i read something about the rate of burning fats is not much different whether the cardio is fasted or fed, but i would like to see some evidence that muscle wasting is increased despite high protein diet and weight-training.