MAGETWO-52215: Cms pages isn't synchronized with core_config_data

Author: shiftedreality

app/code/Magento/Cms/Model/Page.php

@@ -513,6 +513,9 @@ public function setIsActive($isActive)
         return $this->setData(self::IS_ACTIVE, $isActive);
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function beforeSave()
     {
         $originalIdentifier = $this->getOrigData('identifier');

app/code/Magento/Cms/Test/Unit/Model/PageTest.php

@@ -14,6 +14,7 @@
 
 /**
  * @covers \Magento\Cms\Model\Page
+ * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  */
 class PageTest extends \PHPUnit_Framework_TestCase
 {
@@ -57,7 +58,7 @@ protected function setUp()
             ->getMock();
         $this->resourcePageMock = $this->getMockBuilder(PageResource::class)
             ->disableOriginalConstructor()
-            ->setMethods(['getIdFieldName', 'checkIdentifier',])
+            ->setMethods(['getIdFieldName', 'checkIdentifier'])
             ->getMock();
         $this->eventManagerMock = $this->getMockBuilder(ManagerInterface::class)
             ->disableOriginalConstructor()