From 881a0efd1e6a1ed9f0a1491c0aa72db79dedb777 Mon Sep 17 00:00:00 2001
From: ddCat <2695092045@qq.com>
Date: Tue, 4 Aug 2026 16:36:14 +0800
Subject: [PATCH] =?UTF-8?q?fix(canvas):=20=E6=8F=90=E7=A4=BA=E8=AF=8D?=
 =?UTF-8?q?=E7=BC=96=E8=BE=91=20-=20=E4=BF=AE=E5=A4=8D=E5=8F=AF=E9=80=89?=
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---
 CHANGELOG.md                                   | 2 ++
 web/src/pages/canvas/use-canvas-node-editor.ts | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb611a353..1c021e67c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- 修复提示词编辑读取可选节点元数据时导致的前端生产构建失败。
+
 ## v1.0.33
 
 - 新增功能开放运维开关和管理员添加用户能力，并优化后台、创作页与移动端页面布局。
diff --git a/web/src/pages/canvas/use-canvas-node-editor.ts b/web/src/pages/canvas/use-canvas-node-editor.ts
index 7243a7950..500e53d83 100644
--- a/web/src/pages/canvas/use-canvas-node-editor.ts
+++ b/web/src/pages/canvas/use-canvas-node-editor.ts
@@ -132,7 +132,7 @@ export function useCanvasNodeEditor({
             const metadata = moderationFailure && prompt !== previousPrompt
                 ? resetGenerationTaskMetadata(node.metadata, node.metadata?.content ? "success" : "idle")
                 : node.metadata;
-            const promptTemplateMetadata = prompt !== previousPrompt && metadata.promptTemplateOperation
+            const promptTemplateMetadata = prompt !== previousPrompt && metadata?.promptTemplateOperation
                 ? { promptTemplateOperation: undefined, promptTemplateVariables: undefined }
                 : {};
             return { ...node, metadata: hasExistingContent ? { ...metadata, ...promptTemplateMetadata, composerContent: prompt } : { ...metadata, ...promptTemplateMetadata, prompt, composerContent: prompt } };