commit https://github.com/vim/vim/commit/dda933d06c06c2792bd686d059f6ad19191ad30b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Sep 3 21:04:58 2016 +0200 patch 7.4.2320 Problem: Redraw problem when using 'incsearch'. Solution: Save the current view when deleting characters. (Christian Brabandt) Fix that the '" mark is set in the wrong position. Don't change the search start when using BS.

" Common preparations for running tests.

" Make sure 'runtimepath' and 'packpath' does not include $HOME.
set rtp=$VIM/vimfiles,$VIMRUNTIME,$VIM/vimfiles/after
if has('packages')
  let &packpath = &rtp
endif

" Only when the +eval feature is present. 
if 1
  " Make sure $HOME does not get read or written.
  let $HOME = '/does/not/exist'
endif