patch 9.0.0621: filetype test leaves file behind Commit: https://github.com/vim/vim/commit/fc06cda8379031890ee8852cdca61eb8af8e1ba2 Author: Dominique Pelle <dominique.pelle@gmail.com> Date: Thu Sep 29 13:07:18 2022 +0100 patch 9.0.0621: filetype test leaves file behind Problem: Filetype test leaves file behind. Solution: Add deferred delete flag to writefile(). (Dominique Pell?, closes #11249)

" Vim filetype plugin 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