Terminal locking up when editing a file at the remote end of an ssh.

Thanks for filing an issue! Please answer the questions below so I can help you.

• iTerm2 version: 3.1.2
• OS version: Mac Os 10.11.6 / FreeBSD 4.3
• Attach here (drag-drop from finder into this window) com.googlecode.iterm2.plist
• Attach a debug log, if possible. Instructions at https://iterm2.com/debuglog debuglog.txt
• Are you reporting a performance issue or a hang? Please attach a sample. Instructions at https://gitlab.com/gnachman/iterm2/wikis/HowToSample
• Are you reporting a crash? Please attach the crash log. Instructions at https://gitlab.com/gnachman/iterm2/wikis/crash-logs

Detailed steps to reproduce the problem:

1. From an iterm2 terminal on my mac, ran: ssh remote-freebsd-4.3-server
2. Then 'sudo su'
3. Then 'vi /etc/freebsd-update.conf

What happened:

After moving the cursor a little bit, and then pressing 'e' on one of the lines, the terminal froze.

I killed the 'vi' from another console window, but the terminal was still wedged. Typing 'control C' caused the shell prompt to refresh, but no characters are echoed, and the terminal otherwise doesn't work.

I can repeat this easily, and have been having it happen locally too - when entering 'git commit' messages on the mac laptop too.