commit https://github.com/vim/vim/commit/f0e86a0dbddc18568910e9e4aaae0cd88ca8087a Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 19 19:38:12 2016 +0100 patch 7.4.1607 Problem: Comparing a function that exists on two dicts is not backwards compatible. (Thinca) Solution: Only compare the function, not what the partial adds.

Test for ":options".

STARTTEST
:so small.vim
:let caught = 'ok'
:try
  :options
:catch 
  :let caught = v:throwpoint . "\n" . v:exception
:endtry
:buf 1
:$put =caught
:"
:" Test that changing 'path' keeps two commas.
:set path=foo,,bar
:set path-=bar
:set path+=bar
:$put =&path
:/^result/,$w! test.out
:qa!
ENDTEST

result