TicketDependencyAuthorLocal
    dep    TicketDependencyId
    author PersonId
    open   OutboxItemId

    UniqueTicketDependencyAuthorLocal     dep
    UniqueTicketDependencyAuthorLocalOpen open

TicketDependencyAuthorRemote
    dep    TicketDependencyId
    author RemoteActorId
    open   RemoteActivityId

    UniqueTicketDependencyAuthorRemote     dep
    UniqueTicketDependencyAuthorRemoteOpen open