diff --git a/src/components/game-distribution/gamePublishDraft.test.ts b/src/components/game-distribution/gamePublishDraft.test.ts
index 3f6c32639..14b22a5b7 100644
--- a/src/components/game-distribution/gamePublishDraft.test.ts
+++ b/src/components/game-distribution/gamePublishDraft.test.ts
@@ -44,15 +44,15 @@ describe('readPublishDraft 的 gameId/versionId 配对', () => {
     expect(readPublishDraft(storageWith(draft))).toEqual(draft);
   });
 
-  it('只回填 gameId 的半写草稿判为不可恢复', () => {
-    expect(
-      readPublishDraft(storageWith({ ...BASE_DRAFT, gameId: 'game_1' })),
-    ).toBeNull();
+  it('只有 gameId（更新模式发请求前的正常中间态）仍可恢复', () => {
+    // 更新模式在请求前就写 gameId（路径身份），versionId 等响应；这不是半写损坏，必须保留草稿，
+    // 否则响应丢失后重载会丢掉冻结的 versionNumber、按线上最近版本 +1 推出第二个版本。
+    const draft: GamePublishDraft = { ...BASE_DRAFT, gameId: 'game_1' };
+    expect(readPublishDraft(storageWith(draft))).toEqual(draft);
   });
 
-  it('只回填 versionId 的半写草稿判为不可恢复', () => {
-    expect(
-      readPublishDraft(storageWith({ ...BASE_DRAFT, versionId: 'gamever_1' })),
-    ).toBeNull();
+  it('只有 versionId 的半写草稿仍可恢复（编号类型合法即可）', () => {
+    const draft: GamePublishDraft = { ...BASE_DRAFT, versionId: 'gamever_1' };
+    expect(readPublishDraft(storageWith(draft))).toEqual(draft);
   });
 });
diff --git a/src/components/game-distribution/gamePublishDraft.ts b/src/components/game-distribution/gamePublishDraft.ts
index d1ca42043..6e5d5ff57 100644
--- a/src/components/game-distribution/gamePublishDraft.ts
+++ b/src/components/game-distribution/gamePublishDraft.ts
@@ -8,8 +8,10 @@ import type { GameDistributionRecoveryAction } from '../../../packages/shared/sr
  *
  * `projectKey` 与 `versionNumber` 必须在调用发布接口**之前**写入：它们构成服务端自然幂等键
  * `(owner, projectKey | gameId, versionNumber)` 的一部分，响应丢失后重试才能命中同一游戏与版本。
- * `gameId` / `versionId` 是服务端分配后才回填的字段。`ownerUserId` 用于换账号时拒绝恢复，
- * 避免把上一个账号的私有状态展示给新账号。
+ * `gameId` / `versionId` 是服务端分配后才回填的字段。**更新模式**在请求前就写 `gameId`（路径身份），
+ * `versionId` 要等响应，因此「有 `gameId` 没 `versionId`」是正常的中间态，不能当成损坏草稿丢弃——
+ * 丢了它，响应丢失后重载会按「线上最近版本 +1」推出第二个版本，而不是用冻结的 `versionNumber` 重放。
+ * `ownerUserId` 用于换账号时拒绝恢复，避免把上一个账号的私有状态展示给新账号。
  */
 export type GamePublishDraft = {
   ownerUserId: string;
@@ -40,8 +42,6 @@ function resolveStorage(storage?: StorageLike): StorageLike | null {
 function isDraft(value: unknown): value is GamePublishDraft {
   if (!value || typeof value !== 'object') return false;
   const draft = value as Partial<GamePublishDraft>;
-  const hasGameId = draft.gameId !== undefined;
-  const hasVersionId = draft.versionId !== undefined;
   return Boolean(
     draft.ownerUserId &&
       draft.projectKey &&
@@ -49,9 +49,7 @@ function isDraft(value: unknown): value is GamePublishDraft {
       draft.versionNumber >= 1 &&
       typeof draft.title === 'string' &&
       (draft.gameId === undefined || typeof draft.gameId === 'string') &&
-      (draft.versionId === undefined || typeof draft.versionId === 'string') &&
-      // 两个 id 由同一次发布响应一起回填，半写状态只可能来自损坏的旧草稿，直接判为不可恢复。
-      hasGameId === hasVersionId,
+      (draft.versionId === undefined || typeof draft.versionId === 'string'),
   );
 }
 
diff --git a/src/components/game-distribution/gamePublishSubmission.test.ts b/src/components/game-distribution/gamePublishSubmission.test.ts
index c937f47d4..a944d4164 100644
--- a/src/components/game-distribution/gamePublishSubmission.test.ts
+++ b/src/components/game-distribution/gamePublishSubmission.test.ts
@@ -261,6 +261,43 @@ describe('gamePublishSubmission', () => {
     expect(createProjectKey).not.toHaveBeenCalled();
   });
 
+  it('更新模式草稿只有 gameId（响应丢失的中间态）时仍沿用冻结版本号', async () => {
+    const store = createDraftStore({
+      ownerUserId: 'user-1',
+      projectKey: 'web-project-fixed',
+      versionNumber: 3,
+      gameId: 'game-1',
+      // 刻意不写 versionId：更新模式在请求前只会冻结 gameId，`versionId` 要等响应。
+      title: '旧版本',
+      updatedAt: '2026-10-06T00:00:00.000Z',
+    });
+    const client = createClient({
+      publishGameVersion: vi.fn(async () =>
+        publishResponse({ versionNumber: 3 }),
+      ),
+    });
+    const submit = createGamePublishSubmission({
+      ...client,
+      ...store,
+      createProjectKey: () => 'should-not-be-used',
+      now: FIXED_NOW,
+    });
+
+    // 调用方重读到 max+1 = 4；必须用草稿冻结的 3 重放，而不是新建 v4。
+    await submit({
+      ...BASE_INPUT,
+      target: { mode: 'update', gameId: 'game-1' },
+      versionNumber: 4,
+    });
+
+    const [target] = client.publishGameVersion.mock.calls[0] ?? [];
+    expect(target).toEqual({
+      mode: 'update',
+      gameId: 'game-1',
+      versionNumber: 3,
+    });
+  });
+
   it('换账号时忽略上一账号的草稿并生成新的 projectKey', async () => {
     const store = createDraftStore({
       ownerUserId: 'user-2',