If the capsized boat passed through two gates, the second attempt clears the second gate (here, Gate 3) but not Gate 2, because passing through Gate 3, even capsized, counts as starting negotiation of Gate 3 and "kills" Gate 2 (see Prenegotiation>).

Gate Penalty Reason
2 50 Prenegotiation Gate 3 Capsized
3 0 (Capsize Cleared)

Some Other "50 or not 50" Scenarios