commit https://github.com/vim/vim/commit/472e85970ee3a80abd824bef510df12e9cfe9e96 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 15 17:06:47 2016 +0200 patch 8.0.0035 Problem: Order of matches for 'omnifunc' is messed up. (Danny Su) Solution: Do not set compl_curr_match when called from complete_check(). (closes https://github.com/vim/vim/issues/1168)

" Tests for Visual mode.  Uses double-wide character.
if !has('multi_byte')
  finish
endif

if !has('visual')
  finish
endif

func Test_block_shift_multibyte()
  split
  call setline(1, ['xヹxxx', 'ヹxxx'])
  exe "normal 1G0l\<C-V>jl>"
  call assert_equal('x	 ヹxxx', getline(1))
  call assert_equal('	ヹxxx', getline(2))
  q!
endfunc