When browsing a subset of categories (ie blogs*) and selecting one category the
returned summary is for all articles of the subset.

module call: {news browsecat="1" category="Blog*" detailpage="blog"
detailtemplate="blogdetail" summarytemplate="blogsummary"}

I fixed it making this change:
diff  action.default.php old.action.default.php
67,72c67
< if( isset($params['category_id']) )
<   {
<     $query1 .= " ( mnc.news_category_id = '".$params['category_id']."' ) AND
";
<       $query2 .= " ( mnc.news_category_id = '".$params['category_id']."' ) AND
";
<   }
< else if (isset($params["category"]) && $params["category"] != '')
---
> if (isset($params["category"]) && $params["category"] != '')
100a96,100
> else if( isset($params['category_id']) )
>   {
>     $query1 .= " ( mnc.news_category_id = '".$params['category_id']."' ) AND
";
>     $query2 .= " ( mnc.news_category_id = '".$params['category_id']."' ) AND
";
>   }