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ante: update nonce check (#550)
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noot authored Sep 29, 2020
1 parent cee4c5f commit 7f648d2
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6 changes: 6 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -35,6 +35,12 @@ Ref: https://keepachangelog.com/en/1.0.0/

# Changelog

## Unreleased

### Bug fixes

* (app/ante) [\#550](https://github.com/ChainSafe/ethermint/pull/550) Update ante handler nonce verification to accept any nonce greater than or equal to the expected nonce to allow to successive transactions.

## [v0.2.0] - 2020-09-24

### State Machine Breaking
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5 changes: 4 additions & 1 deletion app/ante/eth.go
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Expand Up @@ -253,7 +253,10 @@ func (nvd NonceVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, sim
}

seq := acc.GetSequence()
if msgEthTx.Data.AccountNonce != seq {
// if multiple transactions are submitted in succession with increasing nonces,
// all will be rejected except the first, since the first needs to be included in a block
// before the sequence increments
if msgEthTx.Data.AccountNonce < seq {
return ctx, sdkerrors.Wrapf(
sdkerrors.ErrInvalidSequence,
"invalid nonce; got %d, expected %d", msgEthTx.Data.AccountNonce, seq,
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