patch 8.2.4734: getcharpos() may change a mark position Commit: https://github.com/vim/vim/commit/3caf1cce2b85a8f24195d057f0ad63082543e99e Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 11 13:05:16 2022 +0100 patch 8.2.4734: getcharpos() may change a mark position Problem: getcharpos() may change a mark position. Solution: Copy the mark position. (closes https://github.com/vim/vim/issues/10148)

" Vim filetype plugin
" Language:	Dockerfile
" Maintainer:   Honza Pokorny <http://honza.ca>
" Last Change:	2014 Aug 29

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let b:undo_ftplugin = "setl commentstring<"

setlocal commentstring=#\ %s