Removed redundant header issue in grid cells while adding grouped product items after changing attribute set

app/code/Magento/GroupedProduct/Test/Mftf/ActionGroup/AdminAssertProductOnGroupedOptionGridActionGroup.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <actionGroup name="AdminAssertProductOnGroupedOptionGridActionGroup">
+        <annotations>
+            <description>Admin assert product on grouped option grid.</description>
+        </annotations>
+        <arguments>
+            <argument name="product"/>
+        </arguments>
+
+        <grabTextFrom selector="{{AdminGroupedProductOptionGridSection.productName}}" stepKey="grabProductName"/>
+        <assertEquals stepKey="assertProductName">
+            <expectedResult type="string">{{product.name}}</expectedResult>
+            <actualResult type="variable">$grabProductName</actualResult>
+        </assertEquals>
+
+        <grabTextFrom selector="{{AdminGroupedProductOptionGridSection.productSku}}" stepKey="grabProductSku"/>
+        <assertEquals stepKey="assertProductSku">
+            <expectedResult type="string">{{product.sku}}</expectedResult>
+            <actualResult type="variable">$grabProductSku</actualResult>
+        </assertEquals>
+    </actionGroup>
+</actionGroups>

app/code/Magento/GroupedProduct/Test/Mftf/Section/AdminGroupedProductOptionGridSection.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+
+<sections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/SectionObject.xsd">
+    <section name="AdminGroupedProductOptionGridSection">
+        <element name="productName" type="text" selector=".data-row td[data-index='name']"/>
+        <element name="productSku" type="text" selector=".data-row td[data-index='sku']"/>
+    </section>
+</sections>

app/code/Magento/GroupedProduct/Test/Mftf/Test/AdminCreateGroupedProductNonDefaultAttributeSetTest.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
+    <test name="AdminCreateGroupedProductNonDefaultAttributeSetTest">
+        <annotations>
+            <features value="GroupedProduct"/>
+            <stories value="Create product"/>
+            <title value="Create Grouped Product when non-default attribute set is chosen"/>
+            <description value="Create Grouped Product with simple when non-default attribute set is chosen"/>
+            <testCaseId value="MC-39950"/>
+            <severity value="MAJOR"/>
+            <group value="groupedProduct"/>
+        </annotations>
+        <before>
+            <createData entity="ApiProductWithDescription" stepKey="createSimpleProduct"/>
+            <createData entity="CatalogAttributeSet" stepKey="createAttributeSet"/>
+            <actionGroup ref="AdminLoginActionGroup" stepKey="loginAsAdmin"/>
+        </before>
+        <after>
+            <actionGroup ref="AdminLogoutActionGroup" stepKey="logout"/>
+            <deleteData createDataKey="createSimpleProduct" stepKey="deleteFirstProduct"/>
+            <deleteData createDataKey="createAttributeSet" stepKey="deleteAttributeSet"/>
+        </after>
+
+        <actionGroup ref="GoToSpecifiedCreateProductPageActionGroup" stepKey="createGroupedProduct">
+            <argument name="productType" value="grouped"/>
+        </actionGroup>
+        <actionGroup ref="AdminProductPageSelectAttributeSetActionGroup" stepKey="selectAttributeSet">
+            <argument name="attributeSetName" value="$createAttributeSet.attribute_set_name$"/>
+        </actionGroup>
+        <actionGroup ref="FillGroupedProductFormActionGroup" stepKey="fillProductForm">
+            <argument name="product" value="GroupedProduct"/>
+        </actionGroup>
+        <actionGroup ref="AdminAssignProductToGroupActionGroup" stepKey="addSimpleToGroup">
+            <argument name="product" value="$$createSimpleProduct$$"/>
+        </actionGroup>
+        <actionGroup ref="AdminAssertProductOnGroupedOptionGridActionGroup" stepKey="assertProductOptionGrid">
+            <argument name="product" value="$$createSimpleProduct$$"/>
+        </actionGroup>
+    </test>
+</tests>

app/code/Magento/GroupedProduct/Ui/DataProvider/Product/Form/Modifier/Grouped.php

@@ -562,6 +562,7 @@ protected function fillMeta()
                             'fit' => true,
                             'label' => __('Thumbnail'),
                             'sortOrder' => 20,
+                            'labelVisible' => false,
                         ],
                     ],
                 ],
@@ -586,6 +587,7 @@ protected function fillMeta()
                             'validation' => [
                                 'validate-number' => true,
                             ],
+                            'labelVisible' => false,
                         ],
                     ],
                 ],
@@ -601,7 +603,8 @@ protected function fillMeta()
                             'elementTmpl' => 'Magento_GroupedProduct/components/position',
                             'sortOrder' => 90,
                             'fit' => true,
-                            'dataScope' => 'positionCalculated'
+                            'dataScope' => 'positionCalculated',
+                            'labelVisible' => false,
                         ],
                     ],
                 ],
@@ -660,6 +663,7 @@ protected function getTextColumn($dataScope, $fit, Phrase $label, $sortOrder)
                         'fit' => $fit,
                         'label' => $label,
                         'sortOrder' => $sortOrder,
+                        'labelVisible' => false,
                     ],
                 ],
             ],