call arrange() or resize() depending on c->isfloating in commitnotify

dwl.c

@@ -764,7 +764,7 @@ commitnotify(struct wl_listener *listener, void *data)
 
 	if (c->mon && !wlr_box_empty(&box) && (box.width != c->geom.width - 2 * c->bw
 			|| box.height != c->geom.height - 2 * c->bw))
-		arrange(c->mon);
+		c->isfloating ? resize(c, c->geom, 1) : arrange(c->mon);
 
 	/* mark a pending resize as completed */
 	if (c->resize && (c->resize <= c->surface.xdg->current.configure_serial