Issue #3167716: Unpublished variation access

I applied the patch from https://www.drupal.org/files/issues/2020-08-27/commerce_product-unpublished_variation_access.patch with minor adjustments against 8.x-2.x and in the test.

modules/product/src/Entity/Product.php

@@ -239,7 +239,7 @@ class Product extends CommerceContentEntityBase implements ProductInterface {
       $default_variation = NULL;
       foreach ($this->getVariations() as $variation) {
         // Return the first active variation.
-        if ($variation->isPublished() && $variation->access('view')) {
+        if ($variation->access('view')) {
           $default_variation = $variation;
           break;
         }