From 973a0b7b8a07d69fe221471de9b793750a042a42 Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Wed, 16 Dec 2020 10:53:59 +0000
Subject: [PATCH] set dispatcher ref to null so we don't double-unregister

---
 src/CallHandler.tsx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/CallHandler.tsx b/src/CallHandler.tsx
index eaf56b935a..fac4d6fc4e 100644
--- a/src/CallHandler.tsx
+++ b/src/CallHandler.tsx
@@ -152,7 +152,10 @@ export default class CallHandler {
         if (cli) {
             cli.removeListener('Call.incoming', this.onCallIncoming);
         }
-        if (this.dispatcherRef !== null) dis.unregister(this.dispatcherRef);
+        if (this.dispatcherRef !== null) {
+            dis.unregister(this.dispatcherRef);
+            this.dispatcherRef = null;
+        }
     }
 
     private onCallIncoming = (call) => {