Ticket #8499: fieldset-2.patch

django/contrib/admin/templates/admin/includes/fieldset.html

@@ -2 +2 @@
   {% if fieldset.name %}<h2>{{ fieldset.name }}</h2>{% endif %}
   {% if fieldset.description %}<div class="description">{{ fieldset.description|safe }}</div>{% endif %}
   {% for line in fieldset %}
-      <div class="form-row{% if line.errors %} errors{% endif %} {% for field in line %}{{ field.field.name }} {% endfor %} ">
+      <div class="form-row{% if line.errors %} error{% endif %} {% for field in line %}{{ field.field.name }} {% endfor %} ">
       {{ line.errors }}
       {% for field in line %}
           {% if field.is_checkbox %}

django/contrib/admin/media/js/admin/CollapsedFieldsets.js

@@ -47 +47 @@
         // Returns true if any fields in the fieldset have validation errors.
         var divs = fs.getElementsByTagName('div');
         for (var i=0; i<divs.length; i++) {
-            if (divs[i].className.match(/\berrors\b/)) {
+            if (divs[i].className.match(/\berror\b/)) {
                 return true;
             }
         }