do not fail if domain no longer exists

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20159 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ListBox.py

@@ -1114,7 +1114,10 @@ class ListBoxRenderer:
           if root is not None :
             root_dict[base_domain] = ('portal_categories', domain)
           elif domain_tool is not None:
-            root = domain_tool.getDomainByPath(domain, None)
+            try:
+              root = domain_tool.getDomainByPath(domain, None)
+            except KeyError:
+              root = None
             if root is not None:
               root_dict[base_domain] = ('portal_domains', domain)
         if root is None: