Domain subclass with embedded property causing MissingPropertyException for "save"

quite simply,

class Party {
String type

static constraints =

}

class Person extends Party {
NameInfo name
static embedded = ['name']
}

class Organization extends Party {
String name
String taxId
}

class NameInfo {
String firstName
String lastName
}

instantiating an Organization and saving it causes no problems. Instantiating a Person and trying to save it causes the following exception to occur:

org.codehaus.groovy.runtime.InvokerInvocationException: groovy.lang.MissingPropertyException: No such property: save for class: Person
at org.jsecurity.web.servlet.JSecurityFilter.doFilterInternal(JSecurityFilter.java:382)
at org.jsecurity.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:180)
Caused by: groovy.lang.MissingPropertyException: No such property: save for class: Person
at TestController$_closure10.doCall(TestController.groovy:215)
at TestController$_closure10.doCall(TestController.groovy)
... 2 more

Why? Was working previously off a 1.1.1 snapshot. But upgrade to 1.1.1 killed the code.

Thanks,
Chris