wildfly/wildfly-core — pull request #229 by jamezp (2014-10-07 18:46:48+00:00)
Title: [WFCORE-150] Known attributes that have been undefined need to remove the property

If an attribute is `undefined` via a `undefine-attribute` operation the value on the handler needs to be set to `null` and the property needs to be removed from the configuration.