commit https://github.com/vim/vim/commit/0a38dd29d6f65aa601162542a5ab0ba7f308fc8e Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 25 16:49:01 2015 +0200 patch 7.4.836 Problem: Accessing unitinialized memory. Solution: Add missing calls to init_tv(). (Dominique Pelle)

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}\")