Fatal Error in Forms (4.7.12 Regression)

There is Fatal Error in setting pages and Form whichever extend CRM_Core_Form with changed
access level for $_action. Like in

http://dmaster.demo.civicrm.org/civicrm/admin/setting/preferences/contribute?reset=1
PHP Fatal error: Access level to CRM_Admin_Form_Preferences::$_action must be public (as in class CRM_Core_Form) in <module directory>/civicrm/CRM/Admin/Form/Preferences.php on line 37

I think these files were missed on https://github.com/civicrm/civicrm-core/pull/9039

Monishs-MacBook-Pro:civicrm monish$ grep -irn "protected \$_action" CRM/
CRM//Activity/Selector/Search.php:120: protected $_action;
CRM//Admin/Form/Preferences.php:40: protected $_action = NULL;
CRM//Campaign/Form/Campaign.php:44: protected $_action;
CRM//Campaign/Form/Survey.php:51: protected $_action;
CRM//Campaign/Form/SurveyType.php:59: protected $_action;
CRM//Campaign/Selector/Search.php:110: protected $_action;
CRM//Case/Selector/Search.php:106: protected $_action;
CRM//Contact/Page/View.php:58: protected $_action;
CRM//Contact/Selector/Custom.php:82: protected $_action;
CRM//Contact/Selector.php:115: protected $_action;
CRM//Contribute/Selector/Search.php:128: protected $_action;
CRM//Core/Form/Search.php:52: protected $_actionButtonName;
CRM//Core/Page/Basic.php:35: protected $_action;
CRM//Core/Selector/Controller.php:108: protected $_action;
CRM//Core/StateMachine.php:75: protected $_action = NULL;
CRM//Event/Form/ManageEvent.php:59: protected $_action;
CRM//Event/Form/SelfSvcTransfer.php:106: protected $_action;
CRM//Event/Form/SelfSvcUpdate.php:91: protected $_action;
CRM//Event/Selector/Search.php:126: protected $_action;
CRM//Grant/Selector/Search.php:113: protected $_action;
CRM//Mailing/Page/Browse.php:60: protected $_action;
CRM//Mailing/Selector/Search.php:113: protected $_action;
CRM//Member/Selector/Search.php:110: protected $_action;
CRM//Pledge/Selector/Search.php:114: protected $_action;

Will send a PR with desired change in access modifier protected-to-public