Fix regression from mastodon#5206 - deduplicate descendants (mastodon…

…#5253)
rutan · Oct 11, 2017 · 432daae · 432daae
1 parent 38d0981
commit 432daae
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/app/javascript/mastodon/reducers/contexts.js b/app/javascript/mastodon/reducers/contexts.js
@@ -34,7 +34,13 @@ const deleteFromContexts = (state, id) => {
 const updateContext = (state, status, references) => {
   return state.update('descendants', map => {
     references.forEach(parentId => {
-      map = map.update(parentId, ImmutableList(), list => list.push(status.id));
+      map = map.update(parentId, ImmutableList(), list => {
+        if (list.includes(status.id)) {
+          return list;
+        }
+
+        return list.push(status.id);
+      });
     });
 
     return map;