commit https://github.com/vim/vim/commit/20b4f463f4ab50fa9bcc9838aa94101fa5698125 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 5 17:25:39 2016 +0100 patch 7.4.1491 Problem: Visual-block shift breaks multi-byte characters. Solution: Compute column differently. (Yasuhiro Matsumoto) Add a test.

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")