My fake test used https adapter, so confused this a little, Its a debugging assertion, I want 

````
~/src/pouchdb (master)$ git diff
diff --git a/lib/adapters/idb.js b/lib/adapters/idb.js
index be6b69a..904f111 100644
--- a/lib/adapters/idb.js
+++ b/lib/adapters/idb.js
@@ -234,6 +234,7 @@ function IdbPouch(opts, callback) {
         IdbPouch.Changes.notifyLocalWindows(name);
       });
       callback(null, aresults);
+      callback(null, aresults);
     }

     function preprocessAttachment(att, finish) {
````

To throw up in a big red test failure