[Administration] Distributions : correctif

backend/web/js/vuejs/distribution-index.js

                 var app = this;
                 var quantityMax = event.currentTarget.value;
                 var idProduct = event.currentTarget.getAttribute('data-id-product');
+                app.showLoading = true;
                 axios.get("ajax-process-product-quantity-max", {
                     params: {
                         idDistribution: this.distribution.id,
                     .then(function (response) {
                         Vue.set(app.products[app.getProductIndex(idProduct)], 'quantity_max', response.data.quantity_max);
                         Vue.set(app.products[app.getProductIndex(idProduct)], 'quantity_remaining', response.data.quantity_remaining);
+                        app.showLoading = false;
                     });
             },
             productActiveClick: function (event) {