When a subscription is created using cloudformation:
```
"ProfileChangedSubscription": {
      "Type": "AWS::SNS::Subscription",
      "Properties": {
        "Endpoint": {
          "Fn::GetAtt": [
            "ProfileChangedQueue",
            "Arn"
          ]
        },
        "Protocol": "sqs",
        "FilterPolicy": {
          "eventType": [
            "created"
          ]
        },
        "TopicArn": {
          "Fn::ImportValue": {
            "Fn::Sub": "${ProfilesProfilePublishStack}-ProfileChangedTopic"
          }
        }
      }
    }
```

The specified subscription filter policy is not created. When I run `get-subscription-attributes`, I get information about non-existing filter policy:

```
{
    "Attributes": {
        "TopicArn": "arn:aws:sns:us-east-1:000000000000:profile-changed-topic",
        "Endpoint": "arn:aws:sqs:us-east-1:000000000000:profile-changed-queue",
        "Protocol": "sqs",
        "SubscriptionArn": "arn:aws:sns:us-east-1:000000000000:profile-changed-topic:936a58be-525b-4228-bfdb-c4b2f6048e8c",
        "FilterPolicy": "None"
    }
}
```
}
    },
    'Kinesis::Stream': {
        'create': {
            'function': 'create_stream',
            'parameters': {
                'StreamName': 'Name',
                'ShardCount': 'ShardCount'
            },
            'defaults': {
                'ShardCount': 1
            }
        },
        'delete': {
            'function': 'delete_stream',
            'parameters': {
                'StreamName': 'PhysicalResourceId'
            }
        }
    },
    'StepFunctions::StateMachine': {
        'create': {
            'function': 'create_state_machine',
            'parameters': {
                'name': ['StateMachineName', PLACEHOLDER_RESOURCE_NAME],
                'definition': 'DefinitionString',
                'roleArn': lambda params, **kwargs: get_role_arn(params.get('RoleArn'), **kwargs)
            }
        }
    },