Preserve native focus sequencing in delayed-owner regression

crates/oa-desktop/src/behavior/topology/layout_tests.rs

@@ -596,6 +596,17 @@ async fn production_canvas_keyboard_and_delayed_tasks_respect_real_chooser_and_r
     let snapshot = app.document.snapshot();
     let raw = serde_json::to_value(app.draft.as_ref().unwrap().recovery_snapshot()).unwrap();
     let mut retained_apply = retained_focus_apply(&mut mounted, &mut app).await;
+    assert!(
+        mounted
+            .input(&app, &[key(Named::F6)], mouse::Cursor::Unavailable)
+            .is_empty(),
+        "a second F6 cannot enter while the first focus operation is pending"
+    );
+    // Native Iced completes the Chain synchronously. Complete it before a new
+    // keyboard request, retaining the same Apply to challenge its ownership
+    // guard again after it has already observed a valid owner.
+    mounted.operate(&app, &mut *retained_apply);
+    assert!(focused(&mut mounted, &app, "viewport"));
     let entry = mounted.input(&app, &[key(Named::F6)], mouse::Cursor::Unavailable);
     assert_eq!(entry.len(), 1);
     let delayed = app.update(entry[0].clone());
@@ -705,6 +716,8 @@ async fn production_canvas_keyboard_and_delayed_tasks_respect_real_chooser_and_r
     );
 
     let mut retained_apply = retained_focus_apply(&mut mounted, &mut app).await;
+    mounted.operate(&app, &mut *retained_apply);
+    assert!(focused(&mut mounted, &app, "viewport"));
     let entry = mounted.input(&app, &[key(Named::F6)], mouse::Cursor::Unavailable);
     let delayed = app.update(
         entry