From f5e5cd3a4ec13266204444a1eaed64da9f322e4a Mon Sep 17 00:00:00 2001
From: Felix Becker <felix.b@outlook.com>
Date: Mon, 1 Jun 2020 13:45:49 +0200
Subject: [PATCH] null out _unsubscribe after unsubscription

Fixes #5464
---
 src/internal/Subscription.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/internal/Subscription.ts b/src/internal/Subscription.ts
index 0d7456a1719..a305d5e3ac7 100644
--- a/src/internal/Subscription.ts
+++ b/src/internal/Subscription.ts
@@ -64,6 +64,7 @@ export class Subscription implements SubscriptionLike {
     // null out _subscriptions first so any child subscriptions that attempt
     // to remove themselves from this subscription will noop
     this._subscriptions = null;
+    (<any> this)._unsubscribe = null;
 
     if (_parentOrParents instanceof Subscription) {
       _parentOrParents.remove(this);