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.

func Test_yank_put_clipboard()
  new
  call setline(1, ['a', 'b', 'c'])
  set clipboard=unnamed
  g/^/normal yyp
  call assert_equal(['a', 'a', 'b', 'b', 'c', 'c'], getline(1, 6))

  set clipboard&
  bwipe!
endfunc