Fixed issue : Trim whitespace on SKU when saving product magento#16572

Author: AnshuMishra17

app/code/Magento/Catalog/Controller/Adminhtml/Product/Initialization/Helper/AttributeFilter.php

@@ -28,6 +28,9 @@ class AttributeFilter
     public function prepareProductAttributes(Product $product, array $productData, array $useDefaults): array
     {
         $attributeList = $product->getAttributes();
+        
+        $productData['sku'] = trim($productData['sku']);
+        
         foreach ($productData as $attributeCode => $attributeValue) {
             if ($this->isAttributeShouldNotBeUpdated($product, $useDefaults, $attributeCode, $attributeValue)) {
                 unset($productData[$attributeCode]);