patch 8.0.0927: if a terminal job sends a blank title "running" is not shown commit https://github.com/vim/vim/commit/274a52fd58bbd88f5fe8b96d87abe3574c8169af Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 13 16:09:31 2017 +0200 patch 8.0.0927: if a terminal job sends a blank title "running" is not shown Problem: If a terminal job sends a blank title "running" is not shown. Solution: When the title is blank make it empty.

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