Code review comment for lp:~rainct/libzeitgeist/event-origin-subject-current-uri

Looking good Siegfried, and I am glad we that we can stick this in the ABI stable series. from the principle that any mrq with more than 100 lines must have at least one comment - here goes ;-) :

28 + * This differs from a subject's origin, as it describes where the event comes
29 + * from, not where it resides.

Can you add this event.set_origin() as well?