commit https://github.com/vim/vim/commit/e9d58a6459687a1228b5aa85bd7b31f8f1e528a8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 13 15:07:41 2016 +0200 patch 7.4.2205 Problem: 'wildignore' always applies to getcompletion(). Solution: Add an option to use 'wildignore' or not. (Yegappan Lakshmanan)

" Test for joining lines.

func Test_join_with_count()
  new
  call setline(1, ['one', 'two', 'three', 'four'])
  normal J
  call assert_equal('one two', getline(1))
  %del
  call setline(1, ['one', 'two', 'three', 'four'])
  normal 10J
  call assert_equal('one two three four', getline(1))
  quit!
endfunc