commit https://github.com/vim/vim/commit/7e47d1ac6a9ae0e5a7167aa34ff651a9c39c1641 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 25 16:19:05 2015 +0200 patch 7.4.834 Problem: gettabvar() doesn't work after Vim start. (Szymon Wrozynski) Solution: Handle first window in tab still being NULL. (Christian Brabandt)

Test for search('multi-byte char', 'bce')

STARTTEST
:source small.vim
:source mbyte.vim
:set encoding=utf-8
:/^Test bce:/+1
:$put =search('Ａ', 'bce', line('.'))
:1;/^Results:/,$wq! test.out
ENDTEST

Results:

Test bce:
Ａ