title: Kendoui MVC EditorTemplateName do not work in PopUp edit mode
body: <p>I want to use EditorTemplateName for foreign key Column in KendoUi grid. </p>
  
  <p>when Grid Edit Mode is InLine all thing is OK and My Template Loaded. but when change mode to Popup not load template. 
  how can fix it?</p>
  
  <pre class="lang-js prettyprint-override"><code>@(Html.Kendo().Grid&lt;Product&gt;()
      .Name("grid")
      .Columns(columns =&gt;
      {
          columns.Bound(p =&gt; p.ProductId).Visible(false);
          columns.Bound(p =&gt; p.Title);
  
          columns.ForeignKey(p =&gt; p.CategoryId, new SelectList(ViewBag.CategoryySelectList, "Value", "Text"))
                     .EditorTemplateName("MyTemplate");
  
          columns.Command(cmd =&gt; cmd.Edit());
      })
      .Editable(edit =&gt; edit
          .Mode(GridEditMode.PopUp)
      )
      .DataSource(dataSource =&gt; dataSource
          .Ajax()
          .PageSize(15)
          .Events(events =&gt; events.Error("error_handler"))
          .Model(model =&gt;
          {
              model.Id(p =&gt; p.ProductId);
          })
          .Read(read =&gt; read.Action("FillGrid", "Products"))
          .Update(update =&gt; update.Action("Edit", "Products"))
          .Destroy(destroy =&gt; destroy.Action("Delete", "Products"))
      )
  )
  </code></pre>