From 95a772ec149edb78369c9f89108166f5ecddd685 Mon Sep 17 00:00:00 2001
From: Matt Broadstone <mbroadst@mongodb.com>
Date: Wed, 8 Jan 2020 08:47:46 -0500
Subject: [PATCH] fix: remove servers with me mismatch in `updateRsFromPrimary`

NODE-2417
---
 lib/core/sdam/topology_description.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/core/sdam/topology_description.js b/lib/core/sdam/topology_description.js
index ba6a2507ee6..34ce8ace9a8 100644
--- a/lib/core/sdam/topology_description.js
+++ b/lib/core/sdam/topology_description.js
@@ -287,7 +287,10 @@ function updateRsFromPrimary(
   maxElectionId
 ) {
   setName = setName || serverDescription.setName;
-  if (setName !== serverDescription.setName) {
+  if (
+    setName !== serverDescription.setName ||
+    (serverDescription.me && serverDescription.address !== serverDescription.me)
+  ) {
     serverDescriptions.delete(serverDescription.address);
     return [checkHasPrimary(serverDescriptions), setName, maxSetVersion, maxElectionId];
   }