Restore stty and enable echo when using it2ssh without remote python. Issue 11193

Author: gnachman

ssh-helpers/conductor.sh

@@ -17,7 +17,9 @@ stty_settings=$(command stty -g)
 ################################################################################
 
 cleanup() {
+  log cleanup "$stty_settings"
   command stty "$stty_settings"
+  command stty echo
 }
 
 die() {
@@ -185,6 +187,7 @@ exec_login_shell() {
 
     log exec_login_shell "$login_shell" with name "$shell_name"
 
+    cleanup
     # We need to pass the first argument to the executed program with a leading -
     # to make sure the shell executes as a login shell. Note that not all shells
     # support exec -a so we use the below to try to detect such shells