MAGETWO-50224: Inconsistent data during installation of Store

Author: Leonid Poluyanov

app/code/Magento/Catalog/Setup/InstallData.php

@@ -34,7 +34,7 @@ class InstallData implements InstallDataInterface
      *
      * @var int
      */
-    private $defaultCategoryId = 2;
+    CONST DEFAULT_CATEGORY_ID = 2;
 
     /**
      * Init
@@ -73,10 +73,10 @@ public function install(ModuleDataSetupInterface $setup, ModuleContextInterface
 
         // Create Default Catalog Node
         $category = $categorySetup->createCategory();
-        $category->load($this->defaultCategoryId)
-            ->setId($this->defaultCategoryId)
+        $category->load(self::DEFAULT_CATEGORY_ID)
+            ->setId(self::DEFAULT_CATEGORY_ID)
             ->setStoreId(0)
-            ->setPath($this->rootCategoryId . '/' . $this->defaultCategoryId)
+            ->setPath($this->rootCategoryId . '/' . self::DEFAULT_CATEGORY_ID)
             ->setName('Default Category')
             ->setDisplayMode('PRODUCTS')
             ->setIsActive(1)

app/code/Magento/Store/Setup/InstallSchema.php

@@ -10,6 +10,7 @@
 use Magento\Framework\Setup\ModuleContextInterface;
 use Magento\Framework\Setup\SchemaSetupInterface;
 use \Magento\Framework\DB\Ddl\Table;
+use \Magento\Catalog\Setup\InstallData;
 
 /**
  * @codeCoverageIgnore
@@ -259,7 +260,7 @@ public function install(SchemaSetupInterface $setup, ModuleContextInterface $con
                 'group_id' => 1,
                 'website_id' => 1,
                 'name' => 'Main Website Store',
-                'root_category_id' => 2,
+                'root_category_id' => InstallData::DEFAULT_CATEGORY_ID,
                 'default_store_id' => 1
             ]
         );