Make Storage.origin_visit_update() add an OriginVisit model entity in the journal
instead of a dict, to comply with next version of swh.journal (which will require swh.model objects).
Migrated from D2971 (view on Phabricator)
Staging instance, all changes can be removed at any time
instead of a dict, to comply with next version of swh.journal (which will require swh.model objects).
Migrated from D2971 (view on Phabricator)