ICS4: fix off-by-one error in non-crossing-hello case

cosmos / ibc

Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.

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ICS4: fix off-by-one error in non-crossing-hello case #1077

Closed AdityaSripal closed 5 months ago

AdityaSripal commented 6 months ago

If on TRY, the sequence is the same but the upgrade doesn't exist. Then the counterparty upgrade is stale so we must write upgrade error for that sequence