patch 8.1.0682: text properties not adjusted when backspacing replaced text commit https://github.com/vim/vim/commit/196d157f12cf0476d97f78834155fc67d6b161de Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 2 23:47:18 2019 +0100 patch 8.1.0682: text properties not adjusted when backspacing replaced text Problem: Text properties are not adjusted when backspacing replaced text. Solution: Keep text properties on text restored in replace mode.

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