must now properly use Binary for password (see 4180:42247d70105b). XXX Though this is somewhat backend related (eg store password using a binary type), this should be either well document or handled properly in the db helper.
# type attribute might already be there if migrating from
# version < 3.5 to version >= 3.5.3, BaseTransition being added
# in bootstrap_migration
if versions_map['cubicweb'][0] >= (3, 5, 0):
add_attribute('BaseTransition', 'type')
sync_schema_props_perms('state_of')
sync_schema_props_perms('transition_of')