diff -r be6e473e6b43 -r f85a4c846aad server/migractions.py
--- a/server/migractions.py	Tue Dec 08 16:40:00 2009 +0100
+++ b/server/migractions.py	Tue Dec 08 16:41:43 2009 +0100
@@ -464,7 +464,7 @@
             reporschema = self.repo.schema.rschema(rschema)
             for subj in subjtypes:
                 for obj in objtypes:
-                    if not reporschema.has_rdef(subj, obj):
+                    if (subj, obj) not in reporschema.rdefs:
                         continue
                     self._synchronize_rdef_schema(subj, rschema, obj)
         if syncperms: