Item-not-found bosh error

I’m getting an error message from openfire saying ‘item-not-found’. This is resulting from the fact that my strophe client is sending requests with duplicate rid’s. From what I understand, the xmpp protocol requires that openfire resends a buffered response if a request is made for an already used rid. Does openfire buffer the responses? If not, is there some setting I can set for this?

Thanks,

Chris