patch 8.2.0590: no 'backspace' value allows ignoring the insertion point Commit: https://github.com/vim/vim/commit/aa0489e12d227d24752cf16e4e97058ac32edcc1 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Apr 17 19:41:21 2020 +0200 patch 8.2.0590: no 'backspace' value allows ignoring the insertion point Problem: No 'backspace' value allows ignoring the insertion point. Solution: Add the "nostop" and 3 values. (Christian Brabandt, closes https://github.com/vim/vim/issues/5940)

function Test_Comparators()
  try
    let oldisident=&isident
    set isident+=#
    call assert_equal(1, 1 is#1)
  finally
    let &isident=oldisident
  endtry
endfunction