Function resubscribe_confirmed 

pub(super) fn resubscribe_confirmed(
    client: &mut Client<JournaledSession>,
    pending: &mut Pending,
)

Re-issues every confirmed subscription as a fresh SUBSCRIBE after a Session Present = 0 CONNACK so the broker re-establishes it. In-flight SUBSCRIBEs are not touched here: they are re-armed on connect and re-sent by the next session pump. Because each filter is a single entry, a filter is re-issued by exactly one path, so none goes out twice. A replay carries no user future, but it still gets a pending.acks entry tagged AckCompletion::Internal so the pump arms an ack-timeout deadline for it like any other in-flight SUBSCRIBE.