The typical behavior is that they stop laying and use the nutrition that was going into egg production to grow feathers instead. So for a hen to continue laying while molting is not typical and is uncommon it is not unheard of.
Let me make some guesses. She is a production chicken, either a cross or a breed that lays really well. You are feeding her a high protein diet so she has nutrients for both eggs and feathers. It's even possible that her daylight hours are being extended, either on purpose or with a security or street light. Hopefully you are not providing heat this time of year in Tennessee.
Typically they molt in the fall when the food supply drops off if they are feral and depend on foraging for their food. I know it is a common recommendation on here to up the protein when they molt to help them grow feathers. I don't do that, don't find it necessary. It's just my opinion and I'm fully aware that I'm way in the minority on this forum, but I believe the more unnaturally I treat them the more likely I am to get uncommon results.
I don't know how you are feeding them or anything else. There is a lot of guessing in this. It is also my opinion that she is not being hurt by laying during the molt.