commit https://github.com/vim/vim/commit/55fab439a6f3bba6dbe780ac034b84d5822a1a96 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 7 16:53:13 2016 +0100 patch 7.4.1278 Problem: When jsonencode() fails it still returns something. Solution: Return an empty string on failure.

" 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