From c7c736224ab1ec296362fc83cf1eb2d1f195436e Mon Sep 17 00:00:00 2001
From: mjanda <mjanda@users.noreply.github.com>
Date: Mon, 2 Feb 2015 10:17:25 +0100
Subject: [PATCH] Clear prevCallbacks on detach()

---
 extras/synchronizer.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/extras/synchronizer.js b/extras/synchronizer.js
index e0459fc..fdfec9f 100644
--- a/extras/synchronizer.js
+++ b/extras/synchronizer.js
@@ -123,6 +123,7 @@ Dygraph.synchronize = function(/* dygraphs..., opts */) {
       // release references & make subsequent calls throw.
       dygraphs = null;
       opts = null;
+      prevCallbacks = null;
     }
   };
 };
-- 
2.7.4