Backspace in python3.13 after reset

I'm trying to understand an issue with how backspace works on python3.13 
on both NetBSD 10 and 11.

If I ssh into my NetBSD device and run python3.13 and hit backspace, it 
works as expected. Cool. If I exit() python3.13 and run reset, then run 
python3.13 and hit backspace, it doesn't work.

If I do the same sequence as above with python3.11, I can't repro. 
Backspace works as expected on 3.11.

I feel I'm going to learn something interesting about the reset comand 
and terminal info, maybe readline (?), etc. So asking for help.

Any ideas how to help me debug why this happens?

Thanks - Joel