[web server] #1642893 issue a 403 instead of a 500 on Unauthorized exception
To do so, we allow an arbitrary code to be passed to ``error_handler``. Default
error code is still 500.
add_relation_type('prefered_form')
rql('SET X prefered_form Y WHERE Y canonical TRUE, X identical_to Y')
commit()
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)