commit https://github.com/vim/vim/commit/0a38dd29d6f65aa601162542a5ab0ba7f308fc8e Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 25 16:49:01 2015 +0200 patch 7.4.836 Problem: Accessing unitinialized memory. Solution: Add missing calls to init_tv(). (Dominique Pelle)

start:
test for empty string: ok
test for 1 char: ok
test for 3 chars: ok
test for contains meta char: ok
test for contains non-ascii char: ok