ACP2E-3710: small fix

Author: alzota

lib/web/mage/validation/validation.js

@@ -20,12 +20,12 @@ define([
                 }
 
                 // eslint-disable-next-line one-var
-                let $allInputs = $(element)
-                    .closest('.fieldset')
+                let allInputs = $(element)
+                    .closest('#super-product-table')
                     .find('input[data-validate*="validate-grouped-qty"]');
 
-                if ($allInputs.first().is(element)) {
-                    return $allInputs.toArray().some(input => parseFloat($(input).val()) > 0);
+                if (allInputs.first().is(element)) {
+                    return allInputs.toArray().some(input => parseFloat($(input).val()) > 0);
                 }
 
                 return true;