Problem: simulate gas is less than required with feegrants (#1364)

* Problem: simulate gas is less than require with feegrants

* Update CHANGELOG.md

CHANGELOG.md

@@ -28,6 +28,7 @@
 * [\#1324](https://github.com/cosmos/relayer/pull/1324) Add log-level in global config.
 * [\#1325](https://github.com/cosmos/relayer/pull/1325) Ignore only file not exist error when loadConfigFile.
 * [\#1326](https://github.com/cosmos/relayer/pull/1326) Avoid sending channel close confirm message after channel get closed successfully.
+* [\#1364](https://github.com/cosmos/relayer/pull/1364) Include feegrant message when calculate gas.
 
 ## v0.9.3
 

relayer/chains/cosmos/tx.go

@@ -621,16 +621,6 @@ func (cc *CosmosProvider) buildMessages(
 		txf = txf.WithSequence(sequence)
 	}
 
-	adjusted := gas
-
-	if gas == 0 {
-		_, adjusted, err = cc.CalculateGas(ctx, txf, txSignerKey, cMsgs...)
-
-		if err != nil {
-			return nil, 0, sdk.Coins{}, err
-		}
-	}
-
 	//Cannot feegrant your own TX
 	if txSignerKey != feegranterKey && feegranterKey != "" {
 		granterAddr, err := cc.GetKeyAddressForKey(feegranterKey)
@@ -641,6 +631,16 @@ func (cc *CosmosProvider) buildMessages(
 		txf = txf.WithFeeGranter(granterAddr)
 	}
 
+	adjusted := gas
+
+	if gas == 0 {
+		_, adjusted, err = cc.CalculateGas(ctx, txf, txSignerKey, cMsgs...)
+
+		if err != nil {
+			return nil, 0, sdk.Coins{}, err
+		}
+	}
+
 	// Set the gas amount on the transaction factory
 	txf = txf.WithGas(adjusted)