commit https://github.com/vim/vim/commit/ad5ca9bc1e7145474adb082775a805f1731e9e37 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 20 21:26:08 2016 +0200 patch 7.4.1948 Problem: Using Ctrl-A with double-byte encoding may result in garbled text. Solution: Skip to the start of a character. (Hirohito Higashi)

" Vim filetype plugin
" Language:	Java properties file
" Maintainer:	David Bürgin <676c7473@gmail.com>
" Last Change:	2013-11-19

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

setlocal formatoptions-=t
setlocal comments=:#,:!
setlocal commentstring=#\ %s

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