From 28e8ce967fe9d403c9697755f293f1e99ca8698c Mon Sep 17 00:00:00 2001
From: Luke Barnard <luke@matrix.org>
Date: Tue, 1 May 2018 11:38:57 +0100
Subject: [PATCH] Correctly unregister group store listener when unmounting
 RoomList

---
 src/components/views/rooms/RoomList.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/components/views/rooms/RoomList.js b/src/components/views/rooms/RoomList.js
index 5be28ae6fa..b70c4a994e 100644
--- a/src/components/views/rooms/RoomList.js
+++ b/src/components/views/rooms/RoomList.js
@@ -97,7 +97,7 @@ module.exports = React.createClass({
                 if (tag[0] !== '+') {
                     return;
                 }
-                this.groupStoreToken = GroupStore.registerListener(tag, () => {
+                this._groupStoreToken = GroupStore.registerListener(tag, () => {
                     // This group's rooms or members may have updated, update rooms for its tag
                     this.updateVisibleRoomsForTag(dmRoomMap, tag);
                     this.updateVisibleRooms();
@@ -179,7 +179,9 @@ module.exports = React.createClass({
         }
 
         // NB: GroupStore is not a Flux.Store
-        this._groupStoreToken.unregister();
+        if (this._groupStoreToken) {
+            this._groupStoreToken.unregister();
+        }
 
         // cancel any pending calls to the rate_limited_funcs
         this._delayedRefreshRoomList.cancelPendingCall();