Line editing doesn't work for comments

[hmontero1205]

It doesn't seem like you can seek within a line, and in some cases I can't delete. The ^? characters below were written when I hit the backspace key.

Request times out due to parent waiting for cl^?h^?^?^?^?^?
I need to test further to see what the issue is.

Edit: It looks like there's an interaction between tmux and pygrader. Will conduct additional testing.

Edit2: The issue is not limited to tmux. After a period of time my non-tmux terminal ran into the same issue I had with tmux. It seems like one of the scripts / grade items in the [cs4116/HW3] grader changes the tty settings and messes up backspace.

[ transferred from cs4118/pygrader, opened by @emesterhazy ]