Fix regression in import UI

src/views/app.js

@@ -903,7 +903,7 @@ angular.module('Application').controller('AppController', ['$scope', '$location'
         password: '',
 
         clearForm: function () {
-            $scope.importBackup.provider = '';
+            // $scope.importBackup.provider = ''; // do not clear since we call this function on provider change
             $scope.importBackup.bucket = '';
             $scope.importBackup.prefix = '';
             $scope.importBackup.accessKeyId = '';