patch 8.2.2637: prop_remove() causes a redraw even when nothing changed Commit: https://github.com/vim/vim/commit/09f8b3a02200a1900a8bb41d7436f9d17ebd2d1b Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 21 22:29:54 2021 +0100 patch 8.2.2637: prop_remove() causes a redraw even when nothing changed Problem: prop_remove() causes a redraw even when nothing changed. Solution: Only redraw if a property was removed.

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}\")