[Administration] Produits : problème saisie prix via TTC (NaN)

backend/web/js/backend.js

@@ -322,7 +322,11 @@ function opendistrib_products_event_price_with_tax() {
 
 function opendistrib_products_event_price() {
     taxRateSelected = $('#product-id_tax_rate').find('option:selected').data('tax-rate-value');
+    if (typeof taxRateSelected == 'undefined') {
+        taxRateSelected = 0;
+    }
     var priceWithTax = $('#product-price-with-tax').val();
+    
     if (priceWithTax) {
         $('#product-price').val(getPrice(priceWithTax, taxRateSelected));
         // formattage
@@ -391,7 +395,6 @@ function opendistrib_product_prices_event_price_with_tax() {
         $('#productprice-price-with-tax').val(getPriceWithTax(price, taxRateValue));
         // formattage
         $('#productprice-price').val(parseFloat(price).toFixed(5));
-
         opendistrib_product_prices_update_reduction_increase();
     }
 }
@@ -403,7 +406,6 @@ function opendistrib_product_prices_event_price() {
         $('#productprice-price').val(getPrice(priceWithTax, taxRateValue));
         // formattage
         $('#productprice-price-with-tax').val(parseFloat(priceWithTax).toFixed(2));
-
         opendistrib_product_prices_update_reduction_increase();
     }
 }