patch 8.2.1127: Vim9: getting a dict member may not work Commit: https://github.com/vim/vim/commit/fb9d5c51c8b5b44863f974e1adbee9ae330e75ff Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 4 19:19:43 2020 +0200 patch 8.2.1127: Vim9: getting a dict member may not work Problem: Vim9: getting a dict member may not work. Solution: Clear the dict only after copying the item. (closes https://github.com/vim/vim/issues/6390)

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