[entity] more tweaks for entity attribute cache handling on cw_set/cw_create to fix test regression
* when an attribute is listed in dont-cache-attrs, purge any previous value
* test value is actually modified in EditedEntity.__setitem__ before adding
attribute to dont-cache-attrs
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)