In the case of MultiLinkField, we don't want to add an empty <a> element.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23141 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/FormulatorPatch.py

@@ -31,6 +31,7 @@ from Products.Formulator.Widget import ListWidget
 from Products.Formulator.Widget import RadioWidget
 from Products.Formulator.Widget import MultiItemsWidget
 from ProxyField import ProxyField
+from MultiLinkField import MultiLinkFieldWidget
 from AccessControl import ClassSecurityInfo
 from DocumentTemplate.ustr import ustr
 from cgi import escape
@@ -714,8 +715,11 @@ def MultiItemsWidget_render_items(self, field, key, value, REQUEST, render_prefi
 
   items = field.get_value('items',REQUEST=REQUEST, cell=getattr(REQUEST,'cell',None)) # Added request
   if not items:
+    if not isinstance(self, MultiLinkFieldWidget):
       # multi items widget should have at least one child in order to produce
-    # valid XHTML; disable it so user can not select it
+      # valid XHTML; disable it so user can not select it.
+      # This cannot be applied to MultiLinkFields, which are just some <a>
+      # links
       return [self.render_item('', '', '', '', 'disabled="disabled"')]
 
   css_class = field.get_value('css_class')