Fix deposit data copy (#6847)

* fix deposit data copy

* goimports

beacon-chain/state/BUILD.bazel

@@ -22,6 +22,7 @@ go_library(
         "//tools/benchmark-files-gen:__pkg__",
         "//tools/pcli:__pkg__",
         "//shared/aggregation:__subpackages__",
+        "//shared/depositutil:__subpackages__",
         "//proto/testing:__subpackages__",
     ],
     deps = [

shared/depositutil/BUILD.bazel

@@ -8,6 +8,7 @@ go_library(
     visibility = ["//visibility:public"],
     deps = [
         "//beacon-chain/core/helpers:go_default_library",
+        "//beacon-chain/state:go_default_library",
         "//contracts/deposit-contract:go_default_library",
         "//proto/beacon/p2p/v1:go_default_library",
         "//shared/bls:go_default_library",

shared/depositutil/deposit.go

@@ -10,6 +10,7 @@ import (
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
 	"github.com/prysmaticlabs/go-ssz"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
+	"github.com/prysmaticlabs/prysm/beacon-chain/state"
 	contract "github.com/prysmaticlabs/prysm/contracts/deposit-contract"
 	p2ppb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
 	"github.com/prysmaticlabs/prysm/shared/bls"
@@ -88,7 +89,7 @@ func VerifyDepositSignature(dd *ethpb.Deposit_Data, domain []byte) error {
 	if featureconfig.Get().SkipBLSVerify {
 		return nil
 	}
-	ddCopy := *dd
+	ddCopy := state.CopyDepositData(dd)
 	publicKey, err := bls.PublicKeyFromBytes(dd.PublicKey)
 	if err != nil {
 		return errors.Wrap(err, "could not convert bytes to public key")