app/code/core/Mage/Catalog/Model/Url.php 大概 ~807:
Change:
if ($product->getUrlKey() == '' && !empty($requestPath)
&& strpos($existingRequestPath, $requestPath) === 0
)
To:
if (!empty($requestPath)
&& strpos($existingRequestPath, $requestPath) === 0
)
重新 reindex