fix url for sort

src/formhandler.template.html

@@ -86,7 +86,7 @@ Each template receives these variables:
               if (!_.isEmpty(isSorted))
                 qsort = qsort.update({_sort: [colinfo.name, '-' + colinfo.name]}, 'del')
               var active = _.includes(args['_sort'], op + colinfo.name) %>
-              <a class="dropdown-item urlfilter <%- active ? 'active': '' %>" href="<%- qsort.update({_sort: [op + colinfo.name]}, active ? 'del': 'add').toString() %>">
+              <a class="dropdown-item urlfilter <%- active ? 'active': '' %>" href="<%- qsort.update({[namespace + '_sort']: [op + colinfo.name]}, active ? 'del': 'add').toString() %>">
                 <%- title %>
               </a>
             <% }) %>