XPath not working with XPL choose

> Hi;
>   I have a submission of the form:
> From the view:
>     <xforms:submission id="person-search-submit"
> ref="instance('search-instance')" instance="results-instance" method="get"
> replace="instance" resource="/admin/edit-scw-permissions/">
>       <xforms:message ev:event="xforms-submit-error"
> level="modal">Error!!</xforms:message>
>     </xforms:submission>
>
> The submission is executed in XPL like:
>  <p:processor name="oxf:xforms-submission">
>     <p:input name="submission">
>       <xforms:submission method="get"
> resource="https://localhost/myResource.do" />
>     </p:input>
>     <p:input name="request" href="#instance" />
>     <p:output name="response" id="person-search-response" />
>   </p:processor>
>
> The request input for this is formatted by a previous processor and is of
> the form:
> <parameters xmlns="">
>   <param1>1</param1>
>   <param2>2</param2>
> </parameters>
>
> This all works fine and returns me a result of the form
> <?xml version="1.0" encoding="UTF-8"?>
> <results>
>     <status>success</status>
>     <result>
>         <persons totalRecords="2" rows="20" start="0">
>             <person>
>                 <pid>pid1</pid>
>                 <displayname>Surname, Firstname</displayname>
>                 <the_email>oneathome.com</the_email>
>             </person>
>         </persons>
>     </result>
> </results>
>
> Now, immediately after the submission, I'm trying to do an XPL choose
> dependent upon the results like so:
>   <p:choose href="#person-search-response">
>     <p:when test="/results">
>       <p:processor name="oxf:xslt-2.0">
>         <p:input name="config">
>           <xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> version="2.0">
>             <xsl:template match="/">
>              .....xslt....
>             </xsl:template>
>           </xsl:transform>
>         </p:input>
>       </p:processor>
>        .....
>        .....
>
> The problem I'm having is with <p:when test="/results">.  For some reason,
> the XPath does not seem to evaluate at all.  It works with root (/), nothing
> else. Can anybody point out to me where I'm going wrong (please)?
>
>
>
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