[C++ broker] Exclusive autodelete queues created with AMQP 1.0 don't seem to be autodeleted

I'm using a qpid.messaging client with AMQP 1.0 to create a temporary / auto-delete queue on the broker. This queue should get deleted after the connection is closed. However, it seems that if the queue is exclusive, it is never autodeleted. To create the queue, I'm using following address:

myresponse_queue_1;
{
create: always,
assert: never,
node:
{
durable: false,
properties:

{ auto-delete: true, exclusive: true, 'qpid.max_count': 1000, 'qpid.max_size': 1000000, 'qpid.policy_type': ring }

}
}

According to qpid-tool, the auto-delete option is properly recognized:

Object of type: org.apache.qpid.broker:queue:_data(aee19387-3611-855a-c8ff-d2f106e5b5f4)
Attribute 160
===========================================================================================================
vhostRef 170
name response.ABCFR_ABCFRALMMACC1.response_queue_1
durable False
autoDelete True
exclusive True
arguments

{u'qpid.max_size': '1000000', u'qpid.max_count': '999', u'qpid.policy_type': 'ring'}

msgTotalEnqueues 0
msgTotalDequeues 0
msgTxnEnqueues 0
msgTxnDequeues 0
msgPersistEnqueues 0
msgPersistDequeues 0
msgDepth 0
byteDepth 0
byteTotalEnqueues 0
byteTotalDequeues 0
byteTxnEnqueues 0
byteTxnDequeues 0
bytePersistEnqueues 0
bytePersistDequeues 0
msgFtdEnqueues 0
msgFtdDequeues 0
byteFtdEnqueues 0
byteFtdDequeues 0
msgFtdDepth 0
byteFtdDepth 0
releases 0
acquires 0
discardsTtl 0
discardsRing 0
discardsLvq 0
discardsOverflow 0
discardsSubscriber 0
discardsPurge 0
reroutes 0
consumerCount 1
consumerCountHigh 1
consumerCountLow 1
bindingCount 1
bindingCountHigh 1
bindingCountLow 1
unackedMessages 0
unackedMessagesHigh 0
unackedMessagesLow 0
messageLatencyMin 0s
messageLatencyMax 0s
flowStopped False
flowStoppedCount 0
redirectPeer
redirectSource False

But the queue is never deleted. With qpid.messaging and AMQP 0.10, or with qpid.messaging, AMQP 1.0 and non-exclusive queue, the auto deletion seems to work fine.

Please let me know if you need some additional logs or information.