Error in PresenceAccess in pubsub
Investigate the claim and fix if necessary.
See analysis above.
I have investigated this issue, and it appears that the subscription owner is the bare JID of the subscriber (per PubSubEngine @ line 520ff). Also, the Roster.getRosterItem method uses the bare JID of the given subscriber, so the effect is an equivalent result. In my opinion we should leave the implementation as-is, given the expectation that the subscription "owner" and "subscriber" are effectively the same JID for this case.