patch 8.1.0698: clearing the window is used too often commit https://github.com/vim/vim/commit/bf3250a8ad39797e3ccdac82d20c6f19533419e4 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 6 17:25:29 2019 +0100 patch 8.1.0698: clearing the window is used too often Problem: Clearing the window is used too often, causing the command line to be cleared when opening a tab. (Miroslav Ko?k?r) Solution: Use NOT_VALID instead of CLEAR. (suggested by Jason Franklin, closes #630) Also do this for a few other places where clearing the screen isn't really needed.

" Vim indent file
" Language:      BibTeX
" Maintainer:    Dorai Sitaram <ds26@gte.com>
" URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
" Last Change:   2005 Mar 28

" Only do this when not done yet for this buffer
if exists("b:did_indent")
  finish
endif
let b:did_indent = 1

setlocal cindent

let b:undo_indent = "setl cin<"