patch 8.0.0522: Win32: when 'clipboard' is "unnamed" yyp does not work commit https://github.com/vim/vim/commit/3fcfa35f82b9d1ef5e95051b3a45578e10c14ec3 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 29 19:20:41 2017 +0200 patch 8.0.0522: Win32: when 'clipboard' is "unnamed" yyp does not work Problem: MS-Windows: when 'clipboard' is "unnamed" yyp does not work in a :global command. Solution: When setting the clipboard was postponed, do not clear the register.

" 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