Do not create bogus non-anonymous objects.

Author: stefanseefeld

roundup/cgi/templating.py

@@ -1240,7 +1240,12 @@ def __init__(self, client, classname, nodeid, prop, name, value,
         self._anonymous = anonymous
         self._name = name
         if not anonymous:
-            self._formname = '%s%s@%s'%(classname, nodeid, name)
+            if nodeid:
+                self._formname = '%s%s@%s'%(classname, nodeid, name)
+            else:
+                # This case occurs when creating a property for a
+                # non-anonymous class.
+                self._formname = '%s@%s'%(classname, name)
         else:
             self._formname = name