Fixed the background smudgie on the stapler=class-bad elements

core/src/main/resources/lib/form/descriptorList.jelly

@@ -67,7 +67,7 @@ THE SOFTWARE.
   <j:if test="${!empty(descriptors) or context['org.apache.commons.jelly.body']!=null}">
     <f:section title="${attrs.title}" name="${attrs.field?:attrs.name}">
       <j:if test="${attrs.field!=null}">
-        <tr>
+        <tr class="stapler-class-bag">
           <td>
             <input type="hidden" name="stapler-class-bag" value="true" />
           </td>

war/src/main/js/widgets/config/tabbar.less

@@ -138,6 +138,11 @@
       .validation-error-area td{
         padding:0 5px;
       }
+
+      .stapler-class-bag td {
+        padding: 0px;
+      }
+      
       td.setting-name{
         line-height:29px;
       }