From f42bd3f34bdc899e2528aad0a40dc426a147df99 Mon Sep 17 00:00:00 2001
From: Kevin Sawicki <kevin@github.com>
Date: Tue, 27 Aug 2013 10:37:05 -0700
Subject: [PATCH] :non-potable_water: Clear config subscriptions when
 unobserving

---
 src/config-observer.coffee | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/config-observer.coffee b/src/config-observer.coffee
index ead7f8b3b..399c02e3e 100644
--- a/src/config-observer.coffee
+++ b/src/config-observer.coffee
@@ -4,5 +4,6 @@ module.exports =
     @configSubscriptions[keyPath] = config.observe(keyPath, args...)
 
   unobserveConfig: ->
-    for keyPath, subscription of @configSubscriptions ? {}
-      subscription.cancel()
+    if @configSubscriptions?
+      subscription.cancel() for keyPath, subscription of @configSubscriptions
+      @configSubscriptions = null