fix: race condition in antecache (#775)

Author: thomas-nguy

CHANGELOG.md

@@ -43,6 +43,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (evm) [#728](https://github.com/crypto-org-chain/ethermint/pull/728) feat: support preinstalls
 * (evm) [#722](https://github.com/crypto-org-chain/ethermint/pull/722) feat: support EIP-2935
 * (rpc) [#764](https://github.com/crypto-org-chain/ethermint/pull/764) rpc: apply state overrides to eth_estimateGas
+* (ante) [#775](https://github.com/crypto-org-chain/ethermint/pull/775) fix: race condition in antecache
 
 ## [v0.22.0] - 2025-08-12
 

ante/eth.go

@@ -311,6 +311,10 @@ func CheckAndSetEthSenderNonce(
 
 			// nonce verification, the sequence needs to be in order
 			if txNonce != expectedNonce {
+				// delete in case of recheck tx
+				if ex {
+					cache.Delete(fromStr, txNonce)
+				}
 				return errorsmod.Wrapf(
 					errortypes.ErrInvalidSequence,
 					"invalid nonce; got %d, expected %d", txNonce, expectedNonce,