Delete doesn't work with assigned id name strategy

[jisikoff]

Delete seems not to work in this test case. Works fine if you comment out the static mapping for id generator...

class AssignedIdDeleteSpec extends Specification {

    @Shared
    @AutoCleanup
    Neo4jDatastore datastore = new Neo4jDatastore(ThingToDelete)

    @Rollback
    void "delete"() {
        given:
        def thing = new ThingToDelete(name: "thing1")
        thing = thing.save(flush: true)
        thing = thing.delete()

        expect:
        def found = ThingToDelete.findByName("thing1")
        found == null
    }
}

@Entity
class ThingToDelete {
    String name
    static mapping = node {
        id {
            generator "assigned"
            name "name"
        }
    }
}