commit https://github.com/vim/vim/commit/e67d546f3c691139e6d3d33f36724d98aec04c14 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 27 22:40:42 2016 +0200 patch 7.4.2275 Problem: ":diffoff!" does not remove filler lines. Solution: Force a redraw and invalidate the cursor. (closes https://github.com/vim/vim/issues/1014)

" Vim support file to switch off loading indent files for file types
"
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2001 Jun 11

if exists("did_indent_on")
  unlet did_indent_on
endif

" Remove all autocommands in the filetypeindent group
silent! au! filetypeindent *