Merge remote-tracking branch 'origin/MAGETWO-51048' into PR

Author: Volodymyr Zaets

app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php

@@ -812,7 +812,7 @@ protected function getIsDeleteFieldConfig($sortOrder)
                     'config' => [
                         'componentType' => ActionDelete::NAME,
                         'fit' => true,
-                        'sortOrder' => $sortOrder,
+                        'sortOrder' => $sortOrder
                     ],
                 ],
             ],

app/code/Magento/Ui/view/base/web/js/dynamic-rows/dynamic-rows.js

@@ -170,7 +170,7 @@ define([
          * @returns {Object} Chainable.
          */
         createHeaderTemplate: function (prop) {
-            var visible = _.isUndefined(prop.visible) ? this.visible() : prop.visible,
+            var visible = prop.visible !== false,
                 disabled = _.isUndefined(prop.disabled) ? this.disabled() : prop.disabled;
 
             return {