patch 8.0.1446: acessing freed memory after window command in auto command commit https://github.com/vim/vim/commit/6f361c991221e96d5068c77b854967d997b1529b Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 31 19:06:50 2018 +0100 patch 8.0.1446: acessing freed memory after window command in auto command Problem: Acessing freed memory after window command in auto command. (gy741) Solution: Adjust the pointer in the parent frame. (Christian Brabandt, closes #2467)

" Settings for test script execution
" Always use "sh", don't use the value of "$SHELL".
set shell=sh

" Only when the +eval feature is present. 
if 1
  " While some tests overwrite $HOME to prevent them from polluting user files,
  " we need to remember the original value so that we can tell external systems
  " where to ask about their own user settings.
  let g:tester_HOME = $HOME
endif

source setup.vim