From ea6974fc89153421464dbe7ffbddf41744d6428f Mon Sep 17 00:00:00 2001
From: David Baker <dave@matrix.org>
Date: Wed, 17 Jan 2018 19:27:22 +0000
Subject: [PATCH] Return null if device data isn't set

This is more normal, and the code doesn't expect to get empty
objects here which is reasonable since it never sets one.
---
 src/crypto/store/memory-crypto-store.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/crypto/store/memory-crypto-store.js b/src/crypto/store/memory-crypto-store.js
index 5d89fbe72..aab767b4d 100644
--- a/src/crypto/store/memory-crypto-store.js
+++ b/src/crypto/store/memory-crypto-store.js
@@ -37,7 +37,7 @@ export default class MemoryCryptoStore {
         // Map of {senderCurve25519Key+'/'+sessionId -> session data object}
         this._inboundGroupSessions = {};
         // Opaque device data object
-        this._deviceData = {};
+        this._deviceData = null;
     }
 
     /**