patch 8.0.0672: third item of synconcealed() changes too often commit https://github.com/vim/vim/commit/cc0750dc6e878394ab0fd922b7ea4280918ae406 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 24 22:29:24 2017 +0200 patch 8.0.0672: third item of synconcealed() changes too often Problem: Third item of synconcealed() changes too often. (Dominique Pelle) Solution: Reset the sequence number at the start of each line.

" Test 'autochdir' behavior

if !exists("+autochdir")
  finish
endif

func Test_set_filename()
  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
  call delete('samples/Xtest')
endfunc