From 29ceeba95ff97db4e2b830d41106e194be13bff1 Mon Sep 17 00:00:00 2001
From: Kevin Hu <kevinhu.sh@gmail.com>
Date: Fri, 14 Feb 2025 12:00:19 +0800
Subject: [PATCH] Fix hit cache error while raptoring. (#4955)

### What problem does this PR solve?

#4126

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
---
 rag/raptor.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rag/raptor.py b/rag/raptor.py
index fcc686565..6a6013605 100644
--- a/rag/raptor.py
+++ b/rag/raptor.py
@@ -46,7 +46,7 @@ class RecursiveAbstractiveProcessing4TreeOrganizedRetrieval:
 
     def _embedding_encode(self, txt):
         response = get_embed_cache(self._embd_model.llm_name, txt)
-        if response:
+        if response is not None:
             return response
         embds, _ = self._embd_model.encode([txt])
         if len(embds) < 1 or len(embds[0]) < 1: