From 7a79d8f9b9e67ce6a6c086503954160e5fc31615 Mon Sep 17 00:00:00 2001
From: bielie <bielie@070997.xyz>
Date: Mon, 16 Feb 2026 21:57:22 +0800
Subject: [PATCH] fix(vector): reset fingerprint when clearing vectors

---
 modules/story-summary/story-summary.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/story-summary/story-summary.js b/modules/story-summary/story-summary.js
index 30f29f9..b10ce21 100644
--- a/modules/story-summary/story-summary.js
+++ b/modules/story-summary/story-summary.js
@@ -615,7 +615,9 @@ async function handleClearVectors() {
     await clearEventVectors(chatId);
     await clearAllChunks(chatId);
     await clearStateVectors(chatId);
-    await updateMeta(chatId, { lastChunkFloor: -1 });
+    // Reset both boundary and fingerprint so next incremental build starts from floor 0
+    // without being blocked by stale engine fingerprint mismatch.
+    await updateMeta(chatId, { lastChunkFloor: -1, fingerprint: null });
     await sendVectorStatsToFrame();
     await executeSlashCommand('/echo severity=info 向量数据已清除。如需恢复召回功能，请重新点击"生成向量"。');
     xbLog.info(MODULE_ID, "向量数据已清除");