From 30eeeb5672789d592d5e514a0fd995ce75e69230 Mon Sep 17 00:00:00 2001
From: Rosemary Yin <rosemary.yin@Rosemarys-MacBook-Pro.local>
Date: Tue, 11 Jun 2019 11:05:19 -0400
Subject: [PATCH] fix(changestream): removes all event listeners on close

Fixes Node-1727
---
 lib/change_stream.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/change_stream.js b/lib/change_stream.js
index 1761c44bd1..efc4c0b671 100644
--- a/lib/change_stream.js
+++ b/lib/change_stream.js
@@ -154,6 +154,7 @@ class ChangeStream extends EventEmitter {
 
     // Tidy up the existing cursor
     var cursor = this.cursor;
+    ['data', 'close', 'end', 'error'].forEach(event => this.cursor.removeAllListeners(event));
     delete this.cursor;
     return cursor.close(callback);
   }