ENGCOM-1643: Prevent multiple add-to-cart initializations in case of ajax loaded product listing #15409

 - Merge Pull Request #15409 from vovayatsyuk/magento2:fix-multiple-add-to-cart-requests
 - Merged commits:
   1. 502d962

Author: magento-engcom-team

app/code/Magento/Catalog/view/frontend/web/js/catalog-add-to-cart.js

@@ -38,6 +38,11 @@ define([
         _bindSubmit: function () {
             var self = this;
 
+            if (this.element.data('catalog-addtocart-initialized')) {
+                return;
+            }
+
+            this.element.data('catalog-addtocart-initialized', 1);
             this.element.on('submit', function (e) {
                 e.preventDefault();
                 self.submitForm($(this));