Fix Mysql errror if sql_mode=only_full_group

 - Fix the following error:  Expression #9 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'xerte_uu_nl.fd3.folder_name' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

website_code/php/display_library.php

@@ -860,7 +860,7 @@ function get_workspace_templates($folder_id, $tree_id, $sort_type, $copy_only=fa
     }
 
     if ($type == "") {
-        $query .= " group by td.template_id, tr.role ";
+        $query .= " group by td.template_id, tr.role, tr.folder,fd3.folder_name ";
     }
 
     if ($sort_type == "alpha_down") {