I am trying to send search results with summaries (eg. group, sum, etc) to a advanced PDF template with Render.addSearchResults() but I am not able to access the results the way you would with a non-grouped search in the template. I have tried for example

<#list results as result>${result["GROUP(internalid)"]}</#list>

and I was hopeful about that but it does not work. Does anyone know how these summary search results can be accessed?