Fix Occluder Poly gizmo warning spam

The call to draw the handles in the OccluderPoly was spamming errors when the hole has no points. This PR prevents trying to draw the gizmo for the hole when there are no points, which prevents the spam.

editor/spatial_editor_gizmos.cpp

@@ -5398,10 +5398,14 @@ void OccluderSpatialGizmo::redraw() {
 	const OccluderShapePolygon *occ_poly = get_occluder_shape_poly();
 	if (occ_poly) {
 		// main poly
-		_redraw_poly(false, occ_poly->_poly_pts_local, occ_poly->_poly_pts_local_raw);
+		if (occ_poly->_poly_pts_local_raw.size()) {
+			_redraw_poly(false, occ_poly->_poly_pts_local, occ_poly->_poly_pts_local_raw);
+		}
 
 		// hole
-		_redraw_poly(true, occ_poly->_hole_pts_local, occ_poly->_hole_pts_local_raw);
+		if (occ_poly->_hole_pts_local_raw.size()) {
+			_redraw_poly(true, occ_poly->_hole_pts_local, occ_poly->_hole_pts_local_raw);
+		}
 	}
 }