patch 9.0.1099: trying to resize a hashtab may cause a problem Commit: https://github.com/vim/vim/commit/81b7ecc5cb78cad901a9a85e46ecba109cc6ee7d Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 26 13:08:06 2022 +0000 patch 9.0.1099: trying to resize a hashtab may cause a problem Problem: Trying to resize a hashtab may cause a problem. Solution: Do not try to resize a hashtab before adding an item.

" Vim indent file
" Language:	Mail
" Maintainer:	Bram Moolenaar
" Last Change:	2021 Sep 26

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

" What works best is auto-indenting, disable other indenting.
" For formatting see the ftplugin.
setlocal autoindent nosmartindent nocindent indentexpr=

let b:undo_indent = "setl ai< cin< inde< si<"