fix quantity update bug occuring in reception app at price step (when changing…

fix quantity update bug occuring in reception app at price step (when changing qty of product added at quantity step) by setting product_qty_package = 1

reception/static/js/reception_produits.js

@@ -1325,6 +1325,7 @@ function editProductInfo (productToEdit, value = null, batch = false) {
                 orders[productToEdit.id_po]["previous_steps_data"]["False"]["updated_products"].push(productToEdit);
             } else {
                 productToEdit.product_qty = newValue;
+                productToEdit.product_qty_package = 1;
                 productToEdit.package_qty = productToEdit.product_qty;
 
                 // Product qty has been updated before, update first step data