Added identity_provider relationship to group_membership to deprecate
group_membership.origin
running the UUID column cleanup in a JdbcMigration so the application
can continue to start up in case of error. If validation fails, you'll
see a WARN level log, eg:
https://gist.github.com/xtreme-will-tran/63bad757093285ef78c0
dropping unique index users.(username,origin)