patch 8.2.0773: switching to raw mode every time ":" is used Commit: https://github.com/vim/vim/commit/3b1f18f785f67c6cd110498c366e4d0c0fe11f27 Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 16 23:15:08 2020 +0200 patch 8.2.0773: switching to raw mode every time ":" is used Problem: Switching to raw mode every time ":" is used. Solution: When executing a shell set cur_tmode to TMODE_UNKNOWN, so that the next time TMODE_RAW is used it is set, but not every time.

" Vim filetype plugin file
" Language:	Diff
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2005 Jul 27

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let b:undo_ftplugin = "setl modeline<"

" Don't use modelines in a diff, they apply to the diffed file
setlocal nomodeline