xref and inheritnum

Hi!

When I have the following:

<orderedlist numeration="arabic" inheritnum="inherit">
....
<orderedlist numeration="arabic" inheritnum="inherit">
<listitem id="foo1">Foo 1</listitem>
</orderedlist>
....
</orderedlist>
<para>About item <xref linkend="foo1"/>...</para>

I get this output:
....
3.1 Foo1
....

About item 1...

While I'd think getting: "About item 3.1..." would be more correct.

Is there an "easy" way to have my <xref> text not ignoring the "inheritnum"?

Thanks,
Luciano