send old attrs before new attrs for gatom when clicking "Ok" on the dialog....

send old attrs before new attrs for gatom when clicking "Ok" on the dialog. This way the undo point gets set correctly even if the user has clicked "apply" beforehand

pd/nw/dialog_gatom.html

@@ -234,6 +234,8 @@ function ok() {
     // Steal focus from any active input to make sure it triggers an
     // onchange event
     document.querySelector("button").focus();
+    // send the old attrs first so we can set an undo point on them
+    send_params(old_attrs, false);
     send_params(new_attrs, true);
     cancel(false);
 }