QUIC_CHANNEL_STATE_TERMINATING_CLOSING
case QUIC_CHANNEL_STATE_TERMINATING_CLOSING:
ch_record_state_transition(ch, tcause->remote ? QUIC_CHANNEL_STATE_TERMINATING_DRAINING : QUIC_CHANNEL_STATE_TERMINATING_CLOSING);
case QUIC_CHANNEL_STATE_TERMINATING_CLOSING:
return ch->state == QUIC_CHANNEL_STATE_TERMINATING_CLOSING;