# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1259851748 -3600
# Node ID 9b52725d8c534ba40877457b413077a10173bf88
# Parent  dfa5138cc93826bd16885d16a2f5afea472352dd# Parent  8cf7c767b1341ad4841bacdfbe9d37f54b6b31ad
merge

diff -r dfa5138cc938 -r 9b52725d8c53 web/formwidgets.py
--- a/web/formwidgets.py	Thu Dec 03 15:48:52 2009 +0100
+++ b/web/formwidgets.py	Thu Dec 03 15:49:08 2009 +0100
@@ -394,6 +394,8 @@
         init_ajax_attributes(attrs, self.wdgtype, self.loadtype)
         # XXX entity form specific
         attrs['cubicweb:dataurl'] = self._get_url(form.edited_entity, field)
+        if not values:
+            values = ('',)
         return name, values, attrs
 
     def _get_url(self, entity, field):