patch 8.2.5023: substitute overwrites allocated buffer Commit: https://github.com/vim/vim/commit/338f1fc0ee3ca929387448fe464579d6113fa76a Author: Bram Moolenaar <Bram@vim.org> Date: Thu May 26 15:56:23 2022 +0100 patch 8.2.5023: substitute overwrites allocated buffer Problem: Substitute overwrites allocated buffer. Solution: Disallow undo when in a substitute command.

" vimrc for test_gui_init.vim

" Note that this flag must be added in the .vimrc file, before switching on
" syntax or filetype recognition (when the |gvimrc| file is sourced the system
" menu has already been loaded; the ":syntax on" and ":filetype on" commands
" load the menu too).
set guioptions+=M