patch 8.2.1435: Vim9: always converting to string for ".." leads to mistakes Commit: https://github.com/vim/vim/commit/418f1df54763b79600db1c91c880fbc1007b2e1f Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 12 21:34:49 2020 +0200 patch 8.2.1435: Vim9: always converting to string for ".." leads to mistakes Problem: Vim9: always converting to string for ".." leads to mistakes. Solution: Only automatically convert simple types.

" Vim indent file
" Language:	Mail
" Maintainer:	Bram Moolenaar
" Last Change:	2009 Jun 03

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=