[frontend] 处理知识库回溯点击失效的问题 (#461)

Co-authored-by: lixin_33 <[email protected]>

Author: XinLi-cyber

frontend/src/pages/chatPreview/index.tsx

@@ -448,6 +448,9 @@ const ChatPreview = (props) => {
       }
       // 普通日志
       messageData.answer?.forEach((log) => {
+        if (log.type === 'HIDDEN_MSG') {
+          return;
+        }
         if (log.type === 'FORM') {
           let obj = messageProcess(
             runningInstanceId.current,