From f585d22ce78027ccdf36b3dc9f4629aa998af7ef Mon Sep 17 00:00:00 2001
From: Mitsuhiro Tanda <mitsuhiro.tanda@gmail.com>
Date: Mon, 16 May 2016 19:18:50 +0900
Subject: [PATCH] (templating) update dynamic dashboard only if variable is
 changed

---
 public/app/features/templating/templateValuesSrv.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/public/app/features/templating/templateValuesSrv.js b/public/app/features/templating/templateValuesSrv.js
index 0efc5eb468c..bec7545d9c6 100644
--- a/public/app/features/templating/templateValuesSrv.js
+++ b/public/app/features/templating/templateValuesSrv.js
@@ -27,10 +27,15 @@ function (angular, _, kbn) {
         .filter(function(variable) {
           return variable.refresh === 2;
         }).map(function(variable) {
+          var previousVariable = angular.copy(variable);
           return self.updateOptions(variable).then(function () {
             return self.variableUpdated(variable).then(function () {
-              dynamicDashboardSrv.update(self.dashboard);
-              $rootScope.$emit('template-variable-value-updated');
+              var updatedVariable = angular.copy(variable);
+              delete(updatedVariable.$$hashKey);
+              if (JSON.stringify(previousVariable) !== JSON.stringify(updatedVariable)) {
+                dynamicDashboardSrv.update(self.dashboard);
+                $rootScope.$emit('template-variable-value-updated');
+              }
             });
           });
         });