patch 8.1.0971: failure for selecting quoted text object moves cursor commit https://github.com/vim/vim/commit/55d3bdbbe2bfc7a78b4aa17763788dbddf87cab0 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Feb 22 15:04:17 2019 +0100 patch 8.1.0971: failure for selecting quoted text object moves cursor Problem: Failure for selecting quoted text object moves cursor. Solution: Restore the Visual selection on failure. (Christian Brabandt, closes #4024)

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