fix: add InitEvmCoinInfo upgrade to avoid panic when denom is not registered (#736)

Author: mmsqe

CHANGELOG.md

@@ -28,6 +28,7 @@
 - [\#727](https://github.com/cosmos/evm/pull/727) Avoid nil pointer for `tx evm raw` due to uninitialized EVM coin info.
 - [\#730](https://github.com/cosmos/evm/pull/730) Fix panic if evm mempool not used.
 - [\#733](https://github.com/cosmos/evm/pull/733) Avoid rejecting tx with unsupported extension option for ExtensionOptionDynamicFeeTx.
+- [\#736](https://github.com/cosmos/evm/pull/736) Add InitEvmCoinInfo upgrade to avoid panic when denom is not registered.
 
 ### IMPROVEMENTS
 

docs/migrations/v0.4.0_to_v0.5.0_UNRELEASED.md

@@ -312,6 +312,7 @@ not satisfy the following conditions.
 2. Your EVM Denom must have a display denom associated with it in `DenomMetadata`.
    1. The display denom for the EVM Denom must have an accurate decimal value (i.e. for `uatom`, `atom` must have a decimal value of 6.
 3. Your chain is an 18-decimal chain.
+4. Call `InitEvmCoinInfo` to initialize EVM coin metadata in the module store.
 
 In your UpgradeHandler:
 

evmd/upgrades.go

@@ -2,6 +2,7 @@ package evmd
 
 import (
 	"context"
+
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	"github.com/cosmos/evm/x/vm/types"
 
@@ -59,7 +60,10 @@ func (app EVMD) RegisterUpgradeHandlers() {
 			if err != nil {
 				return nil, err
 			}
-
+			// Initialize EvmCoinInfo in the module store
+			if err := app.EVMKeeper.InitEvmCoinInfo(sdkCtx); err != nil {
+				return nil, err
+			}
 			return app.ModuleManager.RunMigrations(ctx, app.Configurator(), fromVM)
 		},
 	)