--- a/misc/migration/3.5.3_Any.py	Wed Oct 07 21:59:22 2009 +0200
+++ b/misc/migration/3.5.3_Any.py	Wed Oct 07 22:18:16 2009 +0200
@@ -1,8 +1,7 @@
-sync_schema_props_perms('state_of')
-sync_schema_props_perms('transition_of')
-
 # type attribute might already be there if migrating from
 # version < 3.5 to version >= 3.5.3, BaseTransition being added
 # in bootstrap_migration
-if not schema.eschema('BaseTransition').has_subject_relation('type'):
+if versions_map['cubicweb'][0] < (3, 5, 0):
     add_attribute('BaseTransition', 'type')
+    sync_schema_props_perms('state_of')
+    sync_schema_props_perms('transition_of')