Weird behavior using "Open schema type..."

Question

I'd like to check if I'm doing something wrong or it's a bug.
Steps to reproduce:
1- Create a ODSI project;
2- Create a folder and name it "schemas";
3- Create a "test.xsd" schema into "schemas" using this code:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
          xmlns="http://schemata.petrobras.biz/corp/core-types/1.0"
          elementFormDefault="qualified"
          xmlns:xml="http://www.w3.org/XML/1998/namespace"
          attributeFormDefault="unqualified">
<xs:import namespace="http://www.w3.org/XML/1998/namespace"/>
<xs:complexType name="TextLineType">
<xs:simpleContent>
<xs:extension base="xs:normalizedString">
<xs:attribute ref="xml:id"/>
<xs:attribute ref="xml:lang"/>
<xs:attribute ref="xml:space"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:schema>
4- Save your project;
5- Right click "schemas" folder and select "Open Schema Type...";
6- There's no matching types!
7- If you remove all three attributes from extension tag you will have the matching type.
Am I doing something wrong with those attributes?

Answer 1

You can declare it and use it. The only problem seems to be with "right-click -> Open Schema Types..."
<xs:complexType name="TextLineType">
<xs:simpleContent>
<xs:extension base="xs:normalizedString">
<xs:attribute ref="xml:lang"/>
<xs:attribute ref="xml:space"/>
<xs:attribute ref="xml:id"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:element name="TextLine" type="TextLineType"/>
declare function tns:test() as element(ns:TextLine){
<ns:TextLine xml:lang?="" xml:space?="preserve" xml:id='something'>
</ns:TextLine>
};