MAGETWO-99443: Product attribute cannot be edited if the attribute was created with 2 same values

- Updated automated test script.

Author: Lilit5

app/code/Magento/ConfigurableProduct/Test/Mftf/Section/AdminCreateProductConfigurationsPanelSection.xml

@@ -22,7 +22,7 @@
         <element name="selectAll" type="button" selector=".action-select-all"/>
         <element name="selectAllByAttribute" type="button" selector="//div[@data-attribute-title='{{attr}}']//button[contains(@class, 'action-select-all')]" parameterized="true"/>
         <element name="createNewValue" type="input" selector=".action-create-new" timeout="30"/>
-        <element name="attributeNameInTitle" type="input" selector="//div[contains(@class,'attribute-entity-title-block')]/div[@class='attribute-entity-title']"/>
+        <element name="attributeNameInTitle" type="input" selector="//div[contains(@class,'attribute-entity-title-block')]/div[contains(@class,'attribute-entity-title')]"/>
         <element name="attributeName" type="input" selector="li[data-attribute-option-title=''] .admin__field-create-new .admin__control-text"/>
         <element name="attributeNameWithError" type="text" selector="//li[@data-attribute-option-title='']/div[contains(@class,'admin__field admin__field-create-new _error')]"/>
         <element name="saveAttribute" type="button" selector="li[data-attribute-option-title=''] .action-save" timeout="30"/>