#21734 Error in JS validation rule

Author: kisroman

app/code/Magento/Ui/view/base/web/js/lib/validation/rules.js

@@ -919,12 +919,12 @@ define([
         ],
         'validate-per-page-value-list': [
             function (value) {
-                var isValid = utils.isEmpty(value),
+                var isValid = true,
                     values = value.split(','),
                     i;
 
-                if (isValid) {
-                    return true;
+                if (utils.isEmpty(value)) {
+                    return isValid;
                 }
 
                 for (i = 0; i < values.length; i++) {

lib/web/mage/validation.js

@@ -1425,10 +1425,14 @@
         ],
         'validate-per-page-value-list': [
             function (v) {
-                var isValid = !$.mage.isEmpty(v),
+                var isValid = true,
                     values = v.split(','),
                     i;
 
+                if ($.mage.isEmpty(v)) {
+                    return isValid;
+                }
+
                 for (i = 0; i < values.length; i++) {
                     if (!/^[0-9]+$/.test(values[i])) {
                         isValid = false;