Fix optimize span traceability performance #23777

**Phenomenon and reproduction steps**

**Root cause and solution**

**Impactions**

**Test method**

**Affected branch(es)**

* main

**Checklist**

- [ ] Dependencies update required
- [ ] Common bug (similar problem in other repo)

app/app/application/l7_flow_tracing.py

@@ -867,12 +867,11 @@ def set_relate(self, _ids, related_map, id_to_related_tag):
             x_request_id_1_df = id_to_related_tag[_id]['x_request_id_1']
             if _id_df == self._id:
                 continue
-            if self.x_request_id_0 and self.x_request_id_0 == x_request_id_0_df:
+            if self.x_request_id_0 and self.x_request_id_0 == x_request_id_1_df:
                 related_map[_id_df][self._id] = related_map[_id_df].get(
                     self._id, set())
                 related_map[_id_df][self._id].add('xrequestid')
-            if self.x_request_id_1 and self.x_request_id_1 == df.x_request_id_0[
-                    i]:
+            if self.x_request_id_1 and self.x_request_id_1 == x_request_id_0_df:
                 related_map[_id_df][self._id] = related_map[_id_df].get(
                     self._id, set())
                 related_map[_id_df][self._id].add('xrequestid')