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.
add_relation_type('prefered_form')
rql('SET X prefered_form Y WHERE Y canonical TRUE, X identical_to Y')
checkpoint()
drop_attribute('EmailAddress', 'canonical')
drop_relation_definition('EmailAddress', 'identical_to', 'EmailAddress')
if 'see_also' in schema:
sync_schema_props_perms('see_also', syncprops=False, syncrdefs=False)