commit https://github.com/vim/vim/commit/7f7c3325d3f1baba32263a3457cfc4d90ecd5ff1 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 18 19:27:24 2016 +0200 patch 7.4.1750 Problem: When a buffer gets updated while in command line mode, the screen may be messed up. Solution: Postpone the redraw when the screen is scrolled.

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}\")