[FIX] filter name fallback if there is no string on the filter

bzr revid: xmo@openerp.com-20120430150613-ifvar5ncjtakzpki

addons/web/static/src/js/search.js

@@ -900,7 +900,10 @@ instance.web.search.FilterGroup = instance.web.search.Input.extend(/** @lends in
         this.view.query.toggle({
             category: _t("Filter"),
             field: this,
-            values: [{label: filter.attrs.string, value: filter}]
+            values: [{
+                label: filter.attrs.string || filter.attrs.name,
+                value: filter
+            }]
         });
     }
 });