MAGETWO-90942: Couldnt edit order from admin with enabled split db

Author: Sergii Kovalenko

app/code/Magento/Quote/Model/ResourceModel/Quote.php

@@ -180,7 +180,7 @@ public function getReservedOrderId($quote)
     public function isOrderIncrementIdUsed($orderIncrementId)
     {
         /** @var  \Magento\Framework\DB\Adapter\AdapterInterface $adapter */
-        $adapter = $this->getConnection();
+        $adapter = $this->_resources->getConnection('sales');
         $bind = [':increment_id' => $orderIncrementId];
         /** @var \Magento\Framework\DB\Select $select */
         $select = $adapter->select();

app/code/Magento/SalesSequence/Setup/Recurring.php

@@ -5,10 +5,8 @@
  */
 namespace Magento\SalesSequence\Setup;
 
-use Magento\Framework\Setup\InstallDataInterface;
 use Magento\Framework\Setup\InstallSchemaInterface;
 use Magento\Framework\Setup\ModuleContextInterface;
-use Magento\Framework\Setup\ModuleDataSetupInterface;
 use Magento\Framework\Setup\SchemaSetupInterface;
 
 /**