Footnote within a list item

Hello,

My footnote is constructed like this:

<footnote>
    <inline baseline-shift="super">99</inline>
    <footnote-body>
        <list-block>
            <list-item>
                <list-item-label>
                    <block baseline-shift="super">99</block>
                </list-item-label>
                <list-item-body start-indent="body-start()">
                    <block>xxxxxxxxx</block>
                </list-item-body>
            </list-item>
        </list-block>
    </footnote-body>
</footnote>

A <list-block> element has been used inside a <footnote-body> element
to obtain a good layout of footnotes sequence at the page's bottom. It
works well except a case, when the footnote is nested inside an actual
list. Then the footnote is, unfortunately, shifted to the right. How
can I force an XSL-FO processor not to treat an inner list as a nested
one?

Thank in advance
Konstanty