[erp5_web_renderjs_ui_test] Submitting can lead to a query error

bt5/erp5_web_renderjs_ui_test/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui_test/Zuite_CommonTemplateForRenderjsUi.zpt

@@ -215,7 +215,21 @@
       <td></td>
     </tr>
     <tal:block metal:use-macro="here/Zuite_CommonTemplateForRenderjsUi/macros/wait_for_content_loaded" />
-    <tal:block metal:use-macro="here/Zuite_CommonTemplateForRenderjsUi/macros/wait_for_listbox_loaded" />
+    <tr>
+      <td>assertElementPresent</td>
+      <td>//div[contains(@data-gadget-url, 'gadget_erp5_field_listbox.html')]//h1//span[contains(@class, "ui-icon-spinner")]</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>waitForElementNotPresent</td>
+      <td>//div[contains(@data-gadget-url, 'gadget_erp5_field_listbox.html')]//h1//span[contains(@class, "ui-icon-spinner")]</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>assertElementNotPresent</td>
+      <td>//div[contains(@data-gadget-url, 'gadget_erp5_field_listbox.html')]//h1//span[contains(@class, "ui-icon-spinner")]</td>
+      <td></td>
+    </tr>
   </tal:block>
 
   <tal:block metal:define-macro="search_in_form_list_without_header_url">

[Bryton Lacquement]

Random failure in https://nexedi.erp5.net/test_result_module/20190812-58D8FF31/48 (WSGI)

BTW, why a assertElementNotPresent at the end whereas the previous check waits there's no element ?

/cc @jm