patch 8.1.0494: functions do not check for a window ID in other tabs commit https://github.com/vim/vim/commit/babfcf54ae9bf9570eddf4958a553635cd589e21 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Oct 25 13:11:16 2018 +0200 patch 8.1.0494: functions do not check for a window ID in other tabs Problem: Functions do not check for a window ID in other tabs. Solution: Also find the window ID in other than the current tab.

" Test 'autochdir' behavior

if !exists("+autochdir")
  finish
endif

func Test_set_filename()
  let cwd = getcwd()
  call test_autochdir()
  set acd
  new
  w samples/Xtest
  call assert_equal("Xtest", expand('%'))
  call assert_equal("samples", substitute(getcwd(), '.*/\(\k*\)', '\1', ''))
  bwipe!
  set noacd
  exe 'cd ' . cwd
  call delete('samples/Xtest')
endfunc