From 362c3edc2bc4ec8db7053eb2420e0a3d2d11ff48 Mon Sep 17 00:00:00 2001
From: Onni Koskinen <onni.koskinen@evolver.fi>
Date: Sun, 6 Feb 2022 10:32:59 +0200
Subject: [PATCH] Fix attribute merging priority order & mutation

---
 packages/logger/src/Logger.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/logger/src/Logger.ts b/packages/logger/src/Logger.ts
index b018543a27..bba8ff3b51 100644
--- a/packages/logger/src/Logger.ts
+++ b/packages/logger/src/Logger.ts
@@ -174,7 +174,7 @@ class Logger implements ClassThatLogs {
    * @returns {void}
    */
   public addPersistentLogAttributes(attributes?: LogAttributes): void {
-    this.persistentLogAttributes = merge(attributes, this.getPersistentLogAttributes());
+    merge(this.persistentLogAttributes, attributes);
   }
 
   /**
@@ -362,7 +362,7 @@ class Logger implements ClassThatLogs {
    */
   private addToPowertoolLogData(...attributesArray: Array<Partial<PowertoolLogData>>): void {
     attributesArray.forEach((attributes: Partial<PowertoolLogData>) => {
-      this.powertoolLogData = merge(attributes, this.getPowertoolLogData());
+      merge(this.powertoolLogData, attributes);
     });
   }