ENGCOM-2980: #18009: [Forwardport] Cannot create a numeric value attribute option using the REST API. #2159

Author: Stanislav Idolov

app/code/Magento/Eav/Model/Entity/Attribute/OptionManagement.php

@@ -153,7 +153,7 @@ protected function validateOption($attribute, $optionId)
      */
     private function getOptionId(\Magento\Eav\Api\Data\AttributeOptionInterface $option) : string
     {
-        return $option->getValue() ?: 'new_option';
+        return 'id_' . ($option->getValue() ?: 'new_option');
     }
 
     /**

dev/tests/api-functional/testsuite/Magento/Catalog/Api/ProductAttributeOptionManagementInterfaceTest.php

@@ -111,6 +111,9 @@ public function addDataProvider()
             'option_with_value_node_that_starts_with_a_number' => [
                 array_merge($optionPayload, [AttributeOptionInterface::VALUE => '123_some_text'])
             ],
+            'option_with_value_node_that_is_a_number' => [
+                array_merge($optionPayload, [AttributeOptionInterface::VALUE => '123'])
+            ],
 
         ];
     }