Use negative col attribute

issue2090
review33661002

view/classification_form.xml

@@ -4,7 +4,7 @@ this repository contains the full copyright notices and license terms. -->
 <form>
     <label name="name"/>
     <field name="name"/>
-    <group id="checkboxes" colspan="2" col="20">
+    <group id="checkboxes" colspan="2" col="-1">
         <label name="active"/>
         <field name="active" xexpand="0" width="25"/>
         <label name="selectable"/>