From 69f5f579ccade569f2b8a2c56eadca4eda7f7e94 Mon Sep 17 00:00:00 2001
From: Berkeley Martinez <Berkeley@robotie.com>
Date: Fri, 9 Sep 2016 01:19:21 -0700
Subject: [PATCH] Fix: harden challenge files reducer

---
 common/app/routes/challenges/redux/reducer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/app/routes/challenges/redux/reducer.js b/common/app/routes/challenges/redux/reducer.js
index 435cffccf8..8e0bb258d5 100644
--- a/common/app/routes/challenges/redux/reducer.js
+++ b/common/app/routes/challenges/redux/reducer.js
@@ -224,7 +224,7 @@ const filesReducer = handleActions(
     [types.savedCodeFound]: (state, { payload: files }) => ({
       ...files
     }),
-    [types.updateCurrentChallenge]: (state, { payload: challenge }) => {
+    [types.updateCurrentChallenge]: (state, { payload: challenge = {} }) => {
       if (challenge.type === 'mod') {
         return challenge.files;
       }