patch 9.0.1036: undo misbehaves when writing from an insert mode mapping Commit: https://github.com/vim/vim/commit/3f8f82772313af9f2417b06651f30988b63e1c96 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 8 21:49:35 2022 +0000 patch 9.0.1036: undo misbehaves when writing from an insert mode mapping Problem: Undo misbehaves when writing from an insert mode mapping. Solution: Sync undo when writing. (closes https://github.com/vim/vim/issues/11674)

" Vim filetype plugin file
" Language:    Logcheck
" Maintainer:  Debian Vim Maintainers
" Last Change: 2018 Dec 27
" License:     Vim License
" URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/ftplugin/logcheck.vim

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

let b:undo_ftplugin = 'setl fo<'

" Do not hard-wrap non-comment lines since each line is a self-contained
" regular expression
setlocal formatoptions-=t