commit https://github.com/vim/vim/commit/71bcfdf30109c3d6e40d143adcaf33964b18a70b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 9 18:20:46 2016 +0100 patch 7.4.1068 Problem: Wrong way to check for unletting internal variables. Solution: Use a better way. (Olaf Dabrunz)

" Test for expression comparators.   vim: set ft=vim :


STARTTEST
:so small.vim
:try
:  let oldisident=&isident
:  set isident+=#
:  if 1 is#1
:    $put ='ok'
:  else
:    $put ='ng'
:  endif
:finally
:  let &isident=oldisident
:endtry
:"
:/^marker/+1,$wq! test.out
ENDTEST

marker