From 9bd2127ba18a65b7b771db8731f5ab3d07792caa Mon Sep 17 00:00:00 2001
From: wwwlll <wingjson@outlook.com>
Date: Wed, 16 Jul 2025 11:43:06 +0800
Subject: [PATCH] Fix: graphknowledge Tree structure not found for treeKey:
 combo (#7819) (#8862)

### What problem does this PR solve?

Fixed graphknowledge Tree structure not found for treeKey.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
---
 .../pages/add-knowledge/components/knowledge-graph/util.ts    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/web/src/pages/add-knowledge/components/knowledge-graph/util.ts b/web/src/pages/add-knowledge/components/knowledge-graph/util.ts
index e0be797f2..8f58fcebc 100644
--- a/web/src/pages/add-knowledge/components/knowledge-graph/util.ts
+++ b/web/src/pages/add-knowledge/components/knowledge-graph/util.ts
@@ -86,7 +86,9 @@ export const buildNodesAndCombos = (nodes: any[]) => {
   const nextNodes = nodes.map((x) => {
     return {
       ...x,
-      combo: combos.find((y) => y.data.label === findCombo(x?.communities))?.id,
+      combo:
+        combos.find((y) => y.data.label === findCombo(x?.communities))?.id ??
+        null,
     };
   });