commit https://github.com/vim/vim/commit/0874a83e9be1b39fdb217f02b427bf1d6133a4d8 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 1 15:11:51 2016 +0200 patch 7.4.2298 Problem: It is not possible to close the "in" part of a channel. Solution: Add ch_close_in().

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