From d332f0aef8831ca112ab55a958d20d9ca94d18cd Mon Sep 17 00:00:00 2001
From: "through.a.haze" <through.a.haze@gmail.com>
Date: Fri, 16 Oct 2020 22:30:06 +0300
Subject: [PATCH] fix: correctly extend the "command" object with "user"

I believe there should be `Object.assign` and not `Object.apply` otherwise `user` isn't added to the `command` object and authentication that requires this field fails.
---
 lib/core/auth/x509.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/core/auth/x509.js b/lib/core/auth/x509.js
index 57a5c55009..4dafa3c6ce 100644
--- a/lib/core/auth/x509.js
+++ b/lib/core/auth/x509.js
@@ -26,7 +26,7 @@ class X509 extends AuthProvider {
 function x509AuthenticateCommand(credentials) {
   const command = { authenticate: 1, mechanism: 'MONGODB-X509' };
   if (credentials.username) {
-    Object.apply(command, { user: credentials.username });
+    Object.assign(command, { user: credentials.username });
   }
 
   return command;