Ignore stale snapshot messages

mixpanel · Mar 9, 2015 · c4bf66d · c4bf66d
1 parent 34c5418
commit c4bf66d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/Mixpanel/MPABTestDesignerSnapshotRequestMessage.m b/Mixpanel/MPABTestDesignerSnapshotRequestMessage.m
@@ -45,9 +45,12 @@ - (NSOperation *)responseCommandWithConnection:(MPABTestDesignerConnection *)con
         // Update the class descriptions in the connection session if provided as part of the message.
         if (serializerConfig) {
             [connection setSessionObject:serializerConfig forKey:kSnapshotSerializerConfigKey];
-        } else {
+        } else if ([connection sessionObjectForKey:kSnapshotSerializerConfigKey]){
             // Get the class descriptions from the connection session store.
             serializerConfig = [connection sessionObjectForKey:kSnapshotSerializerConfigKey];
+        } else {
+            // If neither place has a config, this is probably a stale message and we can't create a snapshot.
+            return;
         }
 
         // Get the object identity provider from the connection's session store or create one if there is none already.