From 695db908786d7bf7f75a87e083d1465626989fa9 Mon Sep 17 00:00:00 2001
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Date: Thu, 8 Oct 2026 11:10:28 +0800
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- 该按钮只在已读到上一版本截图时渲染，原 disabled 判断恒为 false
- 改为逐槽比较草稿与上一版本 objectKey，相同即停用，避免重复标 dirty
- 补充相同停用 / 不同可用并触发沿用的测试
---
 .../export/tabs/taonier/FormCard.tsx          | 10 ++++-
 .../tests/taonierExport.test.tsx              | 37 +++++++++++++++++++
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/apps/ai-game-creator-shell/src/view/project-development/export/tabs/taonier/FormCard.tsx b/apps/ai-game-creator-shell/src/view/project-development/export/tabs/taonier/FormCard.tsx
index dce8dd02d..317f082b2 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/export/tabs/taonier/FormCard.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/export/tabs/taonier/FormCard.tsx
@@ -154,6 +154,14 @@ export function FormCard({
   } else if (localScreenshotCount > 0) {
     screenshotSummary = `本地 ${localScreenshotCount} 张`;
   }
+  // 「沿用上一版本截图」是把上一版本 key 整组写进草稿。草稿已经与上一版本逐槽相同就停用，否则重复
+  // 点击会不断标 dirty、触发无意义的自动保存与冲突往返。
+  const screenshotsSame =
+    onlineScreenshots.length > 0 &&
+    form.screenshotPaths.length === onlineScreenshots.length &&
+    form.screenshotPaths.every(
+      (path, index) => path.trim() === onlineScreenshots[index]?.objectKey,
+    );
 
   // 封面预览三态：空值显示沿用 / 未选占位；本地路径走项目内预览；线上 objectKey 走上一版本换签。
   const renderCoverPreview = (): ReactNode => {
@@ -498,7 +506,7 @@ export function FormCard({
                 variant="link"
                 ariaLabel="沿用上一版本截图"
                 title="把上一版本截图逐槽写进草稿，发布时整组沿用"
-                disabled={onlineScreenshots.length === 0}
+                disabled={screenshotsSame}
                 onClick={onAdoptScreenshots}
               >
                 <ArrowUp size={13} aria-hidden="true" />
diff --git a/apps/ai-game-creator-shell/tests/taonierExport.test.tsx b/apps/ai-game-creator-shell/tests/taonierExport.test.tsx
index 7da39ee65..599b2850e 100644
--- a/apps/ai-game-creator-shell/tests/taonierExport.test.tsx
+++ b/apps/ai-game-creator-shell/tests/taonierExport.test.tsx
@@ -1178,6 +1178,43 @@ describe('面板左半', () => {
     expect(adoptOnlineCover).toHaveBeenCalledTimes(1);
   });
 
+  it('截图已与上一版本逐槽相同时停用「沿用上一版本截图」', () => {
+    const adoptOnlineScreenshots = vi.fn();
+    renderPane(
+      fakeTaonier({
+        form: { ...FORM, screenshotPaths: ['shot/1.png'] },
+        online: ONLINE_VALUES,
+        onlineState: 'ready',
+        adoptOnlineScreenshots,
+      }),
+    );
+    // 已逐槽相同：再点只会重复标 dirty，按钮停用。
+    expect(
+      (
+        screen.getByRole('button', {
+          name: '沿用上一版本截图',
+        }) as HTMLButtonElement
+      ).disabled,
+    ).toBe(true);
+
+    cleanup();
+    renderPane(
+      fakeTaonier({
+        form: FORM,
+        online: ONLINE_VALUES,
+        onlineState: 'ready',
+        adoptOnlineScreenshots,
+      }),
+    );
+    // 草稿是本地图，与上一版本不同：按钮可用并触发沿用。
+    const differentButton = screen.getByRole('button', {
+      name: '沿用上一版本截图',
+    });
+    expect((differentButton as HTMLButtonElement).disabled).toBe(false);
+    fireEvent.click(differentButton);
+    expect(adoptOnlineScreenshots).toHaveBeenCalledTimes(1);
+  });
+
   it('上一版本封面换签失败时显示原因，不伪装成「没有封面」', () => {
     renderPane(
       fakeTaonier({