From a7e3bd0300ee67acfe81c7727baacb0e4e34fead Mon Sep 17 00:00:00 2001
From: Steven Tappert <admin@dark-it.net>
Date: Mon, 5 Nov 2018 18:51:43 +0100
Subject: [PATCH] Check for empty "last_status" before sorting DM column
 (#9207)

* Check for empty "last_status" before sorting

* Small touchups for codeclimate
---
 app/javascript/mastodon/reducers/conversations.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/javascript/mastodon/reducers/conversations.js b/app/javascript/mastodon/reducers/conversations.js
index b13a9fdf4..955a07754 100644
--- a/app/javascript/mastodon/reducers/conversations.js
+++ b/app/javascript/mastodon/reducers/conversations.js
@@ -56,7 +56,13 @@ const expandNormalizedConversations = (state, conversations, next) => {
 
         list = list.concat(items);
 
-        return list.sortBy(x => x.get('last_status'), (a, b) => compareId(a, b) * -1);
+        return list.sortBy(x => x.get('last_status'), (a, b) => {
+          if(a === null || b === null) {
+            return -1;
+          }
+
+          return compareId(a, b) * -1;
+        });
       });
     }