fix: sequence in sign-batch (cosmos#13200)

## Description

Closes: cosmos#13199 



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

CHANGELOG.md

@@ -440,6 +440,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (types) [#12154](https://github.com/cosmos/cosmos-sdk/pull/12154) Add `baseAccountGetter` to avoid invalid account error when create vesting account.
 * (x/crisis) [#12208](https://github.com/cosmos/cosmos-sdk/pull/12208) Fix progress index of crisis invariant assertion logs.
 * (types) [#12229](https://github.com/cosmos/cosmos-sdk/pull/12229) Increase sdk.Dec maxApproxRootIterations to 300
+* (x/auth) [#13200](https://github.com/cosmos/cosmos-sdk/pull/13200) Fix wrong sequences in `sign-batch`
 
 ### State Machine Breaking
 

x/auth/client/cli/tx_sign.go

@@ -95,7 +95,26 @@ func makeSignBatchCmd() func(cmd *cobra.Command, args []string) error {
 		scanner := authclient.NewBatchScanner(txCfg, infile)
 
 		if !clientCtx.Offline {
-			txFactory = txFactory.WithAccountNumber(0).WithSequence(0)
+			if ms == "" {
+				from, err := cmd.Flags().GetString(flags.FlagFrom)
+				if err != nil {
+					return err
+				}
+
+				addr, _, _, err := client.GetFromFields(clientCtx, txFactory.Keybase(), from)
+				if err != nil {
+					return err
+				}
+
+				acc, err := txFactory.AccountRetriever().GetAccount(clientCtx, addr)
+				if err != nil {
+					return err
+				}
+
+				txFactory = txFactory.WithAccountNumber(acc.GetAccountNumber()).WithSequence(acc.GetSequence())
+			} else {
+				txFactory = txFactory.WithAccountNumber(0).WithSequence(0)
+			}
 		}
 
 		for sequence := txFactory.Sequence(); scanner.Scan(); sequence++ {

x/auth/client/testutil/suite.go

@@ -285,6 +285,40 @@ func (s *IntegrationTestSuite) TestCLISignBatch() {
 	// Sign batch malformed tx file signature only.
 	_, err = TxSignBatchExec(val.ClientCtx, val.Address, malformedFile.Name(), fmt.Sprintf("--%s=%s", flags.FlagChainID, val.ClientCtx.ChainID), "--signature-only")
 	s.Require().Error(err)
+
+	// make a txn to increase the sequence of sender
+	_, seq, err := val.ClientCtx.AccountRetriever.GetAccountNumberSequence(val.ClientCtx, val.Address)
+	s.Require().NoError(err)
+
+	account1, err := val.ClientCtx.Keyring.Key("newAccount1")
+	s.Require().NoError(err)
+
+	addr, err := account1.GetAddress()
+	s.Require().NoError(err)
+
+	// Send coins from validator to multisig.
+	_, err = s.createBankMsg(
+		val,
+		addr,
+		sdk.NewCoins(sdk.NewInt64Coin(s.cfg.BondDenom, 1000)),
+	)
+	s.Require().NoError(err)
+	s.Require().NoError(s.network.WaitForNextBlock())
+
+	// fetch the sequence after a tx, should be incremented.
+	_, seq1, err := val.ClientCtx.AccountRetriever.GetAccountNumberSequence(val.ClientCtx, val.Address)
+	s.Require().NoError(err)
+	s.Require().Equal(seq+1, seq1)
+
+	// signing sign-batch should start from the last sequence.
+	signed, err := TxSignBatchExec(val.ClientCtx, val.Address, outputFile.Name(), fmt.Sprintf("--%s=%s", flags.FlagChainID, val.ClientCtx.ChainID), "--signature-only")
+	s.Require().NoError(err)
+	signedTxs := strings.Split(strings.Trim(signed.String(), "\n"), "\n")
+	s.Require().GreaterOrEqual(len(signedTxs), 1)
+
+	sigs, err := s.cfg.TxConfig.UnmarshalSignatureJSON([]byte(signedTxs[0]))
+	s.Require().NoError(err)
+	s.Require().Equal(sigs[0].Sequence, seq1)
 }
 
 func (s *IntegrationTestSuite) TestCliGetAccountAddressByID() {
@@ -449,9 +483,10 @@ func (s *IntegrationTestSuite) TestCLIQueryTxCmdByHash() {
 		sdk.NewCoins(sendTokens),
 	)
 	s.Require().NoError(err)
+	s.Require().NoError(s.network.WaitForNextBlock())
+
 	var txRes sdk.TxResponse
 	s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &txRes))
-	s.Require().NoError(s.network.WaitForNextBlock())
 
 	testCases := []struct {
 		name           string