I don't know. I have never connected the optional footswitch for reverb. I suspect others do not know either, thus no response to your question. My guess is that it will take the reverb circuit completely out.
You may be able to self determine an answer to your question by alternately "footswitching in-out the reverb" and then comparing it to toggling bypass on-off with reverb set to zero? Just a thought.
BTW.....I did play a tele through a TA-30 combo a couple of days ago. Loved the sound!! Managed to refrain from buying one at this time, but maybe down the road. It definitely sounded great! :mrgreen: