patch 8.1.0768: updating completions may cause the popup menu to flicker commit https://github.com/vim/vim/commit/ae654385dfb2ae4c1d70789d1dce3676dba4dfbc Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 17 21:09:05 2019 +0100 patch 8.1.0768: updating completions may cause the popup menu to flicker Problem: Updating completions may cause the popup menu to flicker. Solution: Avoid updating the text below the popup menu before drawing the popup menu.

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

func Test_nested_global()
  new
  call setline(1, ['nothing', 'found', 'found bad', 'bad'])
  call assert_fails('g/found/3v/bad/s/^/++/', 'E147')
  g/found/v/bad/s/^/++/
  call assert_equal(['nothing', '++found', 'found bad', 'bad'], getline(1, 4))
  bwipe!
endfunc