MAGETWO-70852: Import/Export with sample does not work correctly

- fix bundle required attributes

Author: cpartica

app/code/Magento/BundleSampleData/Model/Product.php

@@ -75,7 +75,10 @@ protected function prepareProduct($product, $data)
         $product
             ->setCanSaveConfigurableAttributes(true)
             ->setCanSaveBundleSelections(true)
-            ->setPriceType(0);
+            ->setPriceType(0)
+            ->setShipmentType(0)
+            ->setSkuType(1)
+            ->setWeightType(1);
         $bundleOptionsData = $product->getBundleOptionsData();
         $options = [];
         foreach ($bundleOptionsData as $key => $optionData) {