[Semediawiki-user] Using <gallery> with #ask

[trueskew <tru...@gm...>]

I'm using the Semantic Mediawiki extension. I'm trying to get this to work: 

  <gallery widths="102px" heights="102px">
  {{#ask: [[Category:ClubPage]]
  |?Has Logo=
  |format=template
  |template=GalleryListing
  }}
  </gallery>

Template:GalleryList holds 

  Image:{{{2}}}|{{{1}}}

It comes out blank. I tried it out after replacing all { with &#123;, } with
&#125;, | with &#124;, ande even with colon in GalleryList, but no luck so
far.

If I pull the #ask out of the gallery markers to view the query results, the
result is the list of image files and captions I want, formatted the way I
want it.  If I replace the #ask with a cut-and-paste that result, the
gallery I'm hoping to see shows up. 

Is there some indicator or escape sequence that I need to use to make this
work?  

Unfortunately the SemanticGallery extension doesn't work for me. I need the
names of image files to be retrieved from the Logo field of club profile
pages... unless it has that capability and I'm just not seeing it.  Adding
Categories or Properties to Image pages isn't an option for me. 

Thanks. 
- skew