Hi all,

I've run into an error that I can't quite figure out.  I want to load an Atom feed into an instance for processing.  The feed is based on Solr and is thus searchable with the Lucene query syntax.  Here's how it functions:

A user types in their search string into an xforms:input, instance('search-query').  The user clicks a button which sends a submission called query-nomisma, below.

<xforms:submission id="query-nomisma" serialization="none" method="get" action="http://nomisma.org/feed/?q=typeof:mint+{instance('search-query')}" instance="feed" replace="instance">
  <xforms:message ev:event="xforms-submit-error" level="modal">Unable to communicate with nomisma.org Atom feed.</xforms:message>
</xforms:submission>

The response is placed into an instance called feed:

<xforms:instance id="feed">
   <feed xmlns=""/>
 </xforms:instance>

I get the error when I execute the submission.  I have checked my server logs, and a query comes in successfully, so the problem must be in how Orbeon is handling the data that is returned.  Here is a URL to a feed: http://nomisma.org/feed/?q=typeof:mint+attica .  Is there anything obvious that I am missing here?

Thanks,
Ethan