fix(): Avoid re-synchronizing from url after .transitionTo

Closes #1573

Author: christopherthielen

src/state.js

@@ -194,7 +194,7 @@ function $StateProvider(   $urlRouterProvider,   $urlMatcherFactory) {
     if (!state[abstractKey] && state.url) {
       $urlRouterProvider.when(state.url, ['$match', '$stateParams', function ($match, $stateParams) {
         if ($state.$current.navigable != state || !equalForKeys($match, $stateParams)) {
-          $state.transitionTo(state, $match, { location: false });
+          $state.transitionTo(state, $match, { inherit: true, location: false });
         }
       }]);
     }
@@ -1075,7 +1075,7 @@ function $StateProvider(   $urlRouterProvider,   $urlMatcherFactory) {
 
         if (options.location && to.navigable) {
           $urlRouter.push(to.navigable.url, to.navigable.locals.globals.$stateParams, {
-            replace: options.location === 'replace'
+            $$avoidResync: true, replace: options.location === 'replace'
           });
         }
 

src/urlRouter.js

@@ -265,7 +265,7 @@ function $UrlRouterProvider(   $locationProvider,   $urlMatcherFactory) {
   $get.$inject = ['$location', '$rootScope', '$injector', '$browser'];
   function $get(   $location,   $rootScope,   $injector,   $browser) {
 
-    var baseHref = $browser.baseHref(), location = $location.url();
+    var baseHref = $browser.baseHref(), location = $location.url(), lastPushedUrl = undefined;
 
     function appendBasePath(url, isHtml5, absolute) {
       if (baseHref === '/') return url;
@@ -277,6 +277,9 @@ function $UrlRouterProvider(   $locationProvider,   $urlMatcherFactory) {
     // TODO: Optimize groups of rules with non-empty prefix into some sort of decision tree
     function update(evt) {
       if (evt && evt.defaultPrevented) return;
+      if (lastPushedUrl && $location.url() === lastPushedUrl)
+        return lastPushedUrl = undefined;
+      lastPushedUrl = undefined;
 
       function check(rule) {
         var handled = rule($injector, $location);
@@ -349,6 +352,7 @@ function $UrlRouterProvider(   $locationProvider,   $urlMatcherFactory) {
 
       push: function(urlMatcher, params, options) {
         $location.url(urlMatcher.format(params || {}));
+        lastPushedUrl = options && options.$$avoidResync ? $location.url() : undefined;
         if (options && options.replace) $location.replace();
       },