Fix errors in renaming state to stage for workflow (#21563)

* Fix errors in renaming state to stage for workflow

* Fix table

Author: chmst

administrator/components/com_admin/sql/updates/mysql/4.0.0-2018-05-15.sql

@@ -114,7 +114,7 @@ INSERT INTO `#__workflow_transitions` (`id`, `asset_id`, `published`, `ordering`
 -- Creating extension entry
 --
 
-INSERT INTO `#__extensions` (`extension_id`, `package_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `checked_out`, `checked_out_time`, `ordering`, `stage`, `namespace`) VALUES
+INSERT INTO `#__extensions` (`extension_id`, `package_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `checked_out`, `checked_out_time`, `ordering`, `state`, `namespace`) VALUES
 (35, 0, 'com_workflow', 'component', 'com_workflow', '', 1, 1, 0, 0, '', '{}', 0, '0000-00-00 00:00:00', 0, 0, 'Joomla\\Component\\Workflow');
 
 --

administrator/components/com_workflow/Table/StageTable.php

@@ -78,7 +78,7 @@ public function delete($pk = null)
 		{
 			$query = $db->getQuery(true)
 				->delete($db->quoteName('#__workflow_transitions'))
-				->where($db->quoteName('to_') . ' = ' . (int) $pk, 'OR')
+				->where($db->quoteName('to_stage_id') . ' = ' . (int) $pk, 'OR')
 				->where($db->quoteName('from_stage_id') . ' = ' . (int) $pk);
 
 			$db->setQuery($query)->execute();