patch 9.0.0943: pretending to go out of Insert mode when Esc is received Commit: https://github.com/vim/vim/commit/d330e8422d1c4670a241ce8ebde4c37918538dce Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 24 20:23:24 2022 +0000 patch 9.0.0943: pretending to go out of Insert mode when Esc is received Problem: Pretending to go out of Insert mode when Esc is received has side effects. Solution: When the kitty keyboard protocol is enabled expect Esc to always be the start of an escape sequence.

" Vim filetype plugin file
" Language:             XFree86 Configuration File
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:cpo_save = &cpo
set cpo&vim

let b:undo_ftplugin = "setl com< cms< fo<"

setlocal comments=:# commentstring=#\ %s formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save