commit https://github.com/vim/vim/commit/82faa259cc42379f2a17d598a2a39d14048685b0 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 4 20:14:07 2016 +0200 patch 7.4.1896 Problem: Invoking mark_adjust() when adding a new line below the last line is pointless. Solution: Skip calling mark_adjust() when appending below the last line.

" Vim filetype plugin file
" Language:	bst
" Author:	Tim Pope <vimNOSPAM@tpope.info>
" $Id: bst.vim,v 1.1 2007/05/05 17:37:57 vimboss Exp $

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

setlocal commentstring=%\ %s
setlocal comments=:%
setlocal fo-=t fo+=croql

let b:undo_ftplugin = "setlocal com< cms< fo<"