Merge pull request #21461 from atm-gauthier/FIX/fetchByProductCombination2ValuePairs

FIX : We must remove empty values from $features array in fetchByProduc…

htdocs/variants/class/ProductCombination.class.php

@@ -602,6 +602,10 @@ class ProductCombination
 		$prodcomb2val = new ProductCombination2ValuePair($this->db);
 		$prodcomb = new ProductCombination($this->db);
 
+		$features = array_filter($features, function ($v) {
+			return !empty($v);
+		});
+
 		foreach ($features as $attr => $attr_val) {
 			$actual_comp[$attr] = $attr_val;
 		}