On Wed, Nov 10, 2010 at 2:01 PM, Matthew Wild <[email protected]> wrote: > If the sender chooses to generate unique ids on their stream then > uniqueness is preserved per JID pair.
This is, in fact, untrue as there are multiple streams at play. While the sender will end up with unique ids unless they screw up, the receiver can easily receive duplicate ids, for a variety of reasons including being longer-lived than the sender, and the sender using resource overloading. /K
