message: Fix knockout f tests
diff: <!-- ko if: element.no -->
  <span
  style="position: static;"
  - data-bind="css: element.koCss().number || element.koCss().panel.number, text: element.no, attr: { 'aria-hidden': true }"
  + data-bind="css: element.koCss().number || (element.koCss().panel && element.koCss().panel.number), text: element.no, attr: { 'aria-hidden': true }"
  ></span>
  <span>&nbsp</span>
  <!-- /ko -->
  