Strange log message "2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:" in qpid broker

Issue

I noticed strange messages in my broker log which are produced when the logging for the Model area is set to trace+:

2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:
2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:
2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:
2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:
2014-10-07 13:34:12 [Model] trace Mgmt create journal. id:

In total I seem to have 1066 these messages - this probably correlates with the 533 journal files which are allocated to same queues. I assume this is a bug - message seems to be missing the ID.