fish version installed (version 2.4.0):

OS/terminal used: Fedora 24, gnome-terminal

When using a multi-line prompt, pressing ctrl-c will not preserve previously written command

Reproduction steps

1. Change fish_prompt function to show newlines

function fish_prompt
  echo (whoami)@(hostname)
  echo '$ '
end

2. Re-run fish, and type asdfasdf[CTRL-C]