diff --git a/web/e2e/document-revision-runtime.spec.ts b/web/e2e/document-revision-runtime.spec.ts
index c8663f8a..63de12d2 100644
--- a/web/e2e/document-revision-runtime.spec.ts
+++ b/web/e2e/document-revision-runtime.spec.ts
@@ -1563,22 +1563,24 @@ test.describe.serial('document-revision-runtime UI acceptance', () => {
   test('UI-13b two author-A contexts conflict on same revision', async () => {
     const t0 = Date.now();
     logs = [];
-    if (!controlledDocId) fail('UI-13b requires controlledDocId from UI-03');
-    await openWorkflowDocById(page, controlledDocId);
+    // Intake is locked 已生效受控 after UI-11 三权; conflict must use drafting prelim.
+    const conflictDocId = secondDocId || controlledDocId;
+    if (!conflictDocId) fail('UI-13b requires secondDocId (prelim) from UI-11 or controlledDocId');
+    await openWorkflowDocById(page, conflictDocId);
     await expect(page.locator('[data-testid="doc-rev-version"]')).toBeVisible({ timeout: 20_000 });
     const a1Base = await readVersionBadge(page);
-    const etagA1 = await fetchRevisionStateEtag(page, controlledDocId);
+    const etagA1 = await fetchRevisionStateEtag(page, conflictDocId);
 
     const ctxA2 = await page.context().browser()!.newContext();
     const pageA2 = await ctxA2.newPage();
     await login(pageA2, USER_A, FINAL_PASS_A);
     await pageA2.getByText(PROJECT_NAME, { exact: false }).first().click();
-    await openWorkflowDocById(pageA2, controlledDocId);
+    await openWorkflowDocById(pageA2, conflictDocId);
     await expect(pageA2.locator('[data-testid="doc-rev-version"]')).toBeVisible({ timeout: 30_000 });
     const a2Base = await readVersionBadge(pageA2);
     // Re-read A1 after A2 hydrates in case background reconcile advanced the head.
-    const etagA1Fresh = await fetchRevisionStateEtag(page, controlledDocId);
-    const etagA2 = await fetchRevisionStateEtag(pageA2, controlledDocId);
+    const etagA1Fresh = await fetchRevisionStateEtag(page, conflictDocId);
+    const etagA2 = await fetchRevisionStateEtag(pageA2, conflictDocId);
     if (a2Base.r !== a1Base.r) {
       fail(`A2 must open same revision as A1: ${a2Base.r} vs ${a1Base.r}`);
     }
@@ -1641,7 +1643,7 @@ test.describe.serial('document-revision-runtime UI acceptance', () => {
       id: 'UI-13b',
       name: 'author A/A head conflict',
       input: 'both windows hydrate same r/etag; A2 editor open+filled before A1 save; then A2 save',
-      actual: `base r=${a1Base.r} etag=${etagA1Fresh}; A1 kept ${markerA1}; A2 HTTP ${a2Res.status()} code=${a2Json.code || ''}; A2 editor retained`,
+      actual: `doc=${conflictDocId}; base r=${a1Base.r} etag=${etagA1Fresh}; A1 kept ${markerA1}; A2 HTTP ${a2Res.status()} code=${a2Json.code || ''}; A2 editor retained`,
       networkLogs: logs,
       durationMs: Date.now() - t0,
       verdict: 'PASS',