Merge pull request #2138 from NileemaJadhav/CRM-13886

-- CRM-13886 Modification for api_v3_SettingTest regression test

CRM/Core/BAO/Setting.php

@@ -690,7 +690,7 @@ class CRM_Core_BAO_Setting extends CRM_Core_DAO_Setting {
       return;
     }
     else if (array_keys($filters) == array('name')) {
-      $settingSpec = array($filters['name'] => CRM_Utils_Array::value($filters['name'], $settingSpec));
+      $settingSpec = array($filters['name'] => CRM_Utils_Array::value($filters['name'], $settingSpec, ''));
       return;
     }
     else {