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:	hg (Mercurial) commit file
" Maintainer:	Ken Takata <kentkt at csc dot jp>
" Last Change:	2016 Jan 6
" Filenames:	hg-editor-*.txt
" License:	VIM License
" URL:		https://github.com/k-takata/hg-vim

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

setlocal nomodeline

let b:undo_ftplugin = 'setl modeline<'