XML Schema question re: duplicate element definitions when using element

["Anne Thomas Manes" <atmanes@gmail.com>]

Is this valid?

<schema xmlns="http://www.w3.org/2001/XMLSchema";
   targetNamespace="urn:example:duplicateElements"
   elementFormDefault="qualified">
  <complexType name="foo">
    <sequence>
      <element name="foobar" type="string"/>
    </sequence>
  </complexType>
  <complexType name="bar">
    <sequence>
      <element name="foobar" type="string"/>
    </sequence>
  </complexType>
</schema>

Note two elements named "foobar".

XML Schema spec [1] says:

"Locally scoped attribute and element declarations are special with
regard to symbol spaces. Every complex type definition defines its own
local attribute and element declaration symbol spaces, where these
symbol spaces are distinct from each other and from any of the other
symbol spaces. So, for example, two complex type definitions having the
same target namespace can contain a local attribute declaration for the
unqualified name "priority", or contain a local element declaration for
the name "address", without conflict or necessary relation between the two."

But given that the schema specifies elementFormDefault="qualified",
are the "foobar" elements locally scoped?

[1] http://www.w3.org/TR/xmlschema-1/#concepts-nameSymbolSpaces

Thanks,
Anne