patch 8.2.3237: when a builtin function gives an error processing continues Commit: https://github.com/vim/vim/commit/327d3ee4557027b51aad86e68743a85ed3a6f52b Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 28 19:34:14 2021 +0200 patch 8.2.3237: when a builtin function gives an error processing continues Problem: When a builtin function gives an error processing continues. Solution: In Vim9 script return FAIL in get_func_tv().

" 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<'