Upd alvbx add prods4

vendor/alovoice/src/AloVoiceRest.php

@@ -405,13 +405,13 @@ class AloVoiceRest
 						$bxFld = substr($bxf,9);
 						if(substr($blzf,0,11)=="properties_"){
 							$blzSubFldCode = substr($blzf,11);
-							$blzVal = $data["properties"][$blzSubFldCode];
+							$blzVal = (!empty($data["properties"][$blzSubFldCode])) ? $data["properties"][$blzSubFldCode] : false;
 						}
 						else {
 							$blzVal = $blzf;
 						}
 						
-						if( $bxFld != "ID" && $bxFld != "xmlId" && $bxFld != "quantity" ){
+						if( $bxFld != "ID" && $bxFld != "xmlId" && $bxFld != "quantity" && !empty($blzVal) ){
 							$arNewProductParams[$bxFld] = $blzVal;
 						}
 					}