Re-implemented old hack to get selected columns posting to query save.

app/assets/javascripts/angular/controllers/work-packages-controller.js

@@ -32,6 +32,7 @@ angular.module('openproject.workPackages.controllers')
   };
 
   $scope.submitQueryForm = function(){
+    jQuery("#selected_columns option").attr('selected',true);
     jQuery('#query_form').submit();
     return false;
   };

public/templates/work_packages/query_columns.html

@@ -24,10 +24,10 @@
                 name="c[]"
                 multiple="multiple"
                 ng-model="markedSelectedColumns"
-                ng-options="column.name as column.title for column in columns"
                 name="c[]"
                 size="10"
                 style="width:150px">
+          <option ng-repeat="column in columns" value="{{ column.name }}">{{ column.title }}</option>
         </select>
       </td>
       <td class="table-buttons" align="center" valign="middle">