fix(mail(js)): force search when restoring mailbox during navigation

UI/Templates/MailerUI/UIxMailFolderTemplate.wox

@@ -72,7 +72,7 @@
           <md-icon>search</md-icon>
         </md-button>
         <a href="#" class="sg-folder-name"
-           ng-click="mailbox.searchMode($event)" ng-bind="mailbox.selectedFolder.$displayName"><!-- mailbox name --></a>
+           ng-click="mailbox.searchMode($event)" ng-bind="mailbox.service.selectedFolder.$displayName"><!-- mailbox name --></a>
         <md-menu>
           <md-button class="sg-icon-button" label:aria-label="Sort"
                      ng-click="$mdMenu.open()">

UI/WebServerResources/js/Mailer/Mailbox.service.js

@@ -868,13 +868,18 @@
    * @memberof Mailbox.prototype
    * @desc Reset the original state the mailbox's data.
    */
-  Mailbox.prototype.$reset = function() {
+  Mailbox.prototype.$reset = function(options) {
     var _this = this;
     angular.forEach(this.$shadowData, function(value, key) {
       delete _this[key];
     });
     angular.extend(this, this.$shadowData);
     this.$shadowData = this.$omit();
+    if (options && options.filter) {
+      this.$messages = [];
+      this.$visibleMessages = [];
+      delete this.$syncToken;
+    }
   };
 
   /**

UI/WebServerResources/js/Mailer/MailboxController.js

@@ -53,8 +53,14 @@
         title += ' | ' + defaultWindowTitle;
         $window.document.title = title;
       });
-    };
 
+      $scope.$on('$destroy', function() {
+        if (vm.mode.search) {
+          vm.mode.search = false;
+          vm.selectedFolder.$reset({ filter: true });
+        }
+      });
+    };
 
     function _registerHotkeys(keys) {
       keys.push(sgHotkeys.createHotkey({