fix(home): 修复 feed 更新触发的 build 期 setState

test/home/home_logic_test.dart

@@ -1,5 +1,6 @@
 // Author: fruit.com.cn
 
+import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:fruitshorts/core/data/models/drama.dart';
 import 'package:fruitshorts/pages/discover/discover_types.dart';
@@ -121,6 +122,40 @@ void main() {
     logic.dispose();
   });
 
+  testWidgets('should_defer_drama_notification_when_changed_during_build', (
+    tester,
+  ) async {
+    final logic = HomeLogic(dramas);
+    var notifications = 0;
+    var immediateNotifications = -1;
+    var changed = false;
+    logic.addListener(() => notifications++);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: ListenableBuilder(
+          listenable: logic,
+          builder: (context, _) {
+            if (!changed) {
+              changed = true;
+              logic.onDramaChanged(dramas[1]);
+              immediateNotifications = notifications;
+            }
+            return const SizedBox.shrink();
+          },
+        ),
+      ),
+    );
+
+    expect(immediateNotifications, 0);
+    expect(tester.takeException(), isNull);
+    expect(logic.currentDrama.id, 'city');
+    await tester.pump();
+    expect(notifications, 1);
+    expect(tester.takeException(), isNull);
+    logic.dispose();
+  });
+
   test('should_map_onto_root_tabs_when_my_page_actions_fire', () {
     final logic = HomeLogic(dramas);