Merge remote-tracking branch 'origin/AC-14011' into spartans_pr_10112025

Author: glo60612

app/code/Magento/Catalog/Model/Attribute/ScopeOverriddenValue.php

@@ -105,6 +105,7 @@ public function containsValue($entityType, $entity, $attributeCode, $storeId)
      * @return array
      *
      * @deprecated 101.0.0
+     * @see MAGETWO-71174
      */
     public function getDefaultValues($entityType, $entity)
     {
@@ -157,6 +158,10 @@ private function initAttributeValues($entityType, $entity, $storeId)
                 $selects[] = $select;
             }
 
+            if (empty($selects)) {
+                return;
+            }
+
             $unionSelect = new \Magento\Framework\DB\Sql\UnionExpression(
                 $selects,
                 \Magento\Framework\DB\Select::SQL_UNION_ALL