[schema sync] we don't want to react on after_update_entity, it may only causes bug. CWUniqueConstraint should be deleted then a fresh one readded on change (as we do in sync_schema_props_perms)
[web test] fix some tests broken by recent (and various) changesets
notice test_jscript and test_windmill are still broken, a pain to
maintain and so breaks apycot test since we can't see state change
from green to red (they are always red due to those two tests)