From 53a39e9a959c6866e2f3939898133ede82ca193c Mon Sep 17 00:00:00 2001
From: johnchen05 <john.chen05@sap.com>
Date: Mon, 26 Jan 2026 14:26:41 +0800
Subject: [PATCH 1/2] chore: avoid adjust the original input obj

---
 src/lib/logger/recordFactory.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/lib/logger/recordFactory.ts b/src/lib/logger/recordFactory.ts
index beeab20..631fc37 100644
--- a/src/lib/logger/recordFactory.ts
+++ b/src/lib/logger/recordFactory.ts
@@ -46,7 +46,6 @@ export default class RecordFactory {
             } else if (isValidObject(lastArg)) {
                 if (this.stacktraceUtils.isErrorWithStacktrace(lastArg._error)) {
                     record.metadata.stacktrace = this.stacktraceUtils.prepareStacktrace(lastArg._error.stack);
-                    delete lastArg._error;
                 }
                 customFieldsFromArgs = new Map<string, any>(Object.entries(lastArg));
             } else if (lastArg instanceof Map) {

From 01a2b9305bd8797a98df31f74afd81af2c57039a Mon Sep 17 00:00:00 2001
From: I338312 <john.chen05@sap.com>
Date: Tue, 27 Jan 2026 21:01:31 +0800
Subject: [PATCH 2/2] fix

---
 src/lib/logger/recordFactory.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lib/logger/recordFactory.ts b/src/lib/logger/recordFactory.ts
index 631fc37..ff541f6 100644
--- a/src/lib/logger/recordFactory.ts
+++ b/src/lib/logger/recordFactory.ts
@@ -44,10 +44,11 @@ export default class RecordFactory {
             if (this.stacktraceUtils.isErrorWithStacktrace(lastArg)) {
                 record.metadata.stacktrace = this.stacktraceUtils.prepareStacktrace(lastArg.stack);
             } else if (isValidObject(lastArg)) {
+                customFieldsFromArgs = new Map<string, any>(Object.entries(lastArg));
                 if (this.stacktraceUtils.isErrorWithStacktrace(lastArg._error)) {
                     record.metadata.stacktrace = this.stacktraceUtils.prepareStacktrace(lastArg._error.stack);
+                    customFieldsFromArgs.delete("_error");
                 }
-                customFieldsFromArgs = new Map<string, any>(Object.entries(lastArg));
             } else if (lastArg instanceof Map) {
                 customFieldsFromArgs = lastArg;
             }