Quoting Ron Langham <ronscottlangham@xxxxxxxxx>:
I was able to get around this issue with the StanzaExtension. I
created one with the filterString "/message/event/subscription" and
registered it. Then, in the handlMessage event, I was able to
findextension and have access to the subscription values.
PubSub::Event now does this, too.
cheers,
Jakob