fix(slash): Fix no slash info

x/delegation/keeper/delegation_state.go

@@ -252,6 +252,12 @@ func (k *Keeper) DeleteStakersListForOperator(ctx sdk.Context, operator, assetID
 	return nil
 }
 
+func (k Keeper) HasStakerList(ctx sdk.Context, operator, assetID string) bool {
+	store := prefix.NewStore(ctx.KVStore(k.storeKey), delegationtype.KeyPrefixStakersByOperator)
+	Key := assetstype.GetJoinedStoreKey(operator, assetID)
+	return store.Has(Key)
+}
+
 func (k Keeper) GetStakersByOperator(ctx sdk.Context, operator, assetID string) (delegationtype.StakerList, error) {
 	store := prefix.NewStore(ctx.KVStore(k.storeKey), delegationtype.KeyPrefixStakersByOperator)
 	Key := assetstype.GetJoinedStoreKey(operator, assetID)

x/operator/keeper/slash.go

@@ -117,7 +117,8 @@ func (k *Keeper) SlashAssets(ctx sdk.Context, parameter *types.SlashInputInfo) (
 		// all shares need to be cleared if the asset amount is slashed to zero,
 		// otherwise there will be a problem in updating the shares when handling
 		// the new delegations.
-		if remainingAmount.IsZero() {
+		if remainingAmount.IsZero() &&
+			k.delegationKeeper.HasStakerList(ctx, parameter.Operator.String(), assetID) {
 			// clear the share of other stakers
 			stakerList, err := k.delegationKeeper.GetStakersByOperator(ctx, parameter.Operator.String(), assetID)
 			if err != nil {

x/operator/types/expected_keepers.go

@@ -33,6 +33,7 @@ type DelegationKeeper interface {
 	IterateUndelegationsByOperator(
 		ctx sdk.Context, operator string, heightFilter *uint64, isUpdate bool,
 		opFunc func(undelegation *delegationtype.UndelegationRecord) error) error
+	HasStakerList(ctx sdk.Context, operator, assetID string) bool
 	GetStakersByOperator(
 		ctx sdk.Context, operator, assetID string,
 	) (delegationtype.StakerList, error)