patch 9.0.0579: using freed memory when 'tagfunc' wipes out buffer Commit: https://github.com/vim/vim/commit/0ff01835a40f549c5c4a550502f62a2ac9ac447c Author: Bram Moolenaar <Bram@vim.org> Date: Sat Sep 24 19:20:30 2022 +0100 patch 9.0.0579: using freed memory when 'tagfunc' wipes out buffer Problem: Using freed memory when 'tagfunc' wipes out buffer that holds 'complete'. Solution: Make a copy of the option. Make sure cursor position is valid.

" Vim filetype plugin file
" Language:             X resources files like ~/.Xdefaults (xrdb)
" 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< inc< fo<"

setlocal comments=s1:/*,mb:*,ex:*/,:! commentstring& inc&
setlocal formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save