erp5_web_renderjs_ui_test: stabilize jump

bt5/erp5_web_renderjs_ui_test/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui_test/Zuite_CommonTemplateForRenderjsUiJump.zpt

@@ -56,6 +56,11 @@
     </tal:block>
     <!-- One loader for the form jump dialog submission -->
     <tal:block metal:use-macro="here/Zuite_CommonTemplateForRenderjsUi/macros/wait_for_content_loaded" />
+    <tr>
+      <td>waitForElementPresent</td>
+      <td>//div[@data-gadget-url='${base_url}/web_site_module/renderjs_runner/gadget_erp5_pt_form_jump.html']</td>
+      <td></td>
+    </tr>
     <!-- Another loader for loading the final page -->
     <tal:block metal:use-macro="here/Zuite_CommonTemplateForRenderjsUi/macros/wait_for_content_loaded" />