commit https://github.com/vim/vim/commit/4f8fa1633cdfbd09a41160c8480fe67c198067e9 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 19 19:00:05 2015 +0100 patch 7.4.926 Problem: Completing the longest match doesn't work properly with multi-byte characters. Solution: When using multi-byte characters use another way to find the longest match. (Hirohito Higashi)

start:
axaa
xあああ
bxbb
1
1
1
3
3
3
2
2
1
3
3
1
1
1
1
Test1 
Test2 あた
Test3 N