ACP2E-957: Re: Problem in import products module (Merchant made a patch & asking us to fix in core magento)

Author: thiaramus

app/code/Magento/CatalogImportExport/Model/Import/Product.php

@@ -2944,7 +2944,7 @@ protected function checkUrlKeyDuplicates()
                 )->joinLeft(
                     ['cpe' => $resource->getTable('catalog_product_entity')],
                     "cpe.entity_id = url_rewrite.entity_id"
-                )->where('request_path IN (?)', array_keys($urlKeys))
+                )->where('request_path IN (?)', array_map('strval', array_keys($urlKeys)))
                     ->where('store_id IN (?)', $storeId)
                     ->where('cpe.sku not in (?)', array_values($urlKeys))
             );