Spring Cloud Consul Deregister Failing - spring

Question

I am using Spring Boot / Cloud / Consul (1.0.0.M2 and have tried current code as of 10/6/2015). I'm trying to register/deregister a service that uses a dynamic port and a dynamic id.
I have the following bootstrap:
spring:
cloud:
consul:
config:
enabled: true
host: localhost
port: 8500
And application.yml
spring:
main:
show-banner: false
application:
name: helloService
cloud:
consul:
config:
prefix: config
defaultContext: helloService
discovery:
instanceId: ${spring.application.name}:${spring.application.instance.id:${random.value}}
healthCheckPath: /${spring.application.name}/health
healthCheckInterval: 15s
endpoints:
shutdown:
enabled: true
And in the Key Values under config/application/server.port = 0 for a dynamic port.
The service is registered correctly during startup:
{
"consul": {
"ID": "consul",
"Service": "consul",
"Tags": [],
"Address": "",
"Port": 8300
},
"helloService-6596692c4e8af31ddd1589b0d359899f": {
"ID": "helloService-6596692c4e8af31ddd1589b0d359899f",
"Service": "helloService",
"Tags": [],
"Address": "",
"Port": 50307
} }
After issuing the shutdown:
curl http://localhost:50307/shutdown -X POST
{"message":"Shutting down, bye..."}
The service is still registered and the health check starts failing.
{
"consul": {
"ID": "consul",
"Service": "consul",
"Tags": [],
"Address": "",
"Port": 8300
},
"helloService-6596692c4e8af31ddd1589b0d359899f": {
"ID": "helloService-6596692c4e8af31ddd1589b0d359899f",
"Service": "helloService",
"Tags": [],
"Address": "",
"Port": 50307
} }
What is missing?