aaronzirbes/grails-spring-security-core — comment on commit ca179d1f45bf088943e1ab0a4176e55a1ecabc44
File: SpringSecurityCoreGrailsPlugin.groovy line 674
By aaronzirbes:

This line, along with the config setting will allow sub-plugins, such as LDAP, CAS, Mock or Shibboleth to use their own User classes that are not persisted in the database.

This used to work fine.