fix: unmarshalling issue with multisig keys in master (#10061)

(cherry picked from commit 3d3bc7c)

# Conflicts:
#	CHANGELOG.md

CHANGELOG.md

@@ -53,9 +53,29 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Deprecated
 
+<<<<<<< HEAD
 * (x/upgrade) [\#9906](https://github.com/cosmos/cosmos-sdk/pull/9906) Deprecate `UpgradeConsensusState` gRPC query since this functionality is only used for IBC, which now has its own [IBC replacement](https://github.com/cosmos/ibc-go/blob/2c880a22e9f9cc75f62b527ca94aa75ce1106001/proto/ibc/core/client/v1/query.proto#L54)
 
 ### Bug Fixes
+=======
+* (x/genutil) [#10104](https://github.com/cosmos/cosmos-sdk/pull/10104) Ensure the `init` command reads the `--home` flag value correctly.
+* [\#9651](https://github.com/cosmos/cosmos-sdk/pull/9651) Change inconsistent limit of `0` to `MaxUint64` on InfiniteGasMeter and add GasRemaining func to GasMeter.
+* [\#9639](https://github.com/cosmos/cosmos-sdk/pull/9639) Check store keys length before accessing them by making sure that `key` is of length `m+1` (for `key[n:m]`)
+* (types) [\#9627](https://github.com/cosmos/cosmos-sdk/pull/9627) Fix nil pointer panic on `NewBigIntFromInt`
+* (x/genutil) [\#9574](https://github.com/cosmos/cosmos-sdk/pull/9575) Actually use the `gentx` client tx flags (like `--keyring-dir`)
+* (x/distribution) [\#9599](https://github.com/cosmos/cosmos-sdk/pull/9599) Withdraw rewards event now includes a value attribute even if there are 0 rewards (due to situations like 100% commission).
+* (x/genutil) [\#9638](https://github.com/cosmos/cosmos-sdk/pull/9638) Added missing validator key save when recovering from mnemonic
+* [\#9762](https://github.com/cosmos/cosmos-sdk/pull/9762) The init command uses the chain-id from the client config if --chain-id is not provided
+* [\#9854](https://github.com/cosmos/cosmos-sdk/pull/9854) Fixed the `make proto-gen` to get dynamic container name based on project name for the cosmos based sdks.
+* [\#9829](https://github.com/cosmos/cosmos-sdk/pull/9829) Fixed Coin denom sorting not being checked during `Balance.Validate` check. Refactored the Validation logic to use `Coins.Validate` for `Balance.Coins`.
++ [\#9965](https://github.com/cosmos/cosmos-sdk/pull/9965) Fixed `simd version` command output to report the right release tag.
++ [\#9980](https://github.com/cosmos/cosmos-sdk/pull/9980) Returning the error when the invalid argument is passed to bank query total supply cli.
++ [\#10061](https://github.com/cosmos/cosmos-sdk/pull/10061) Ensure that `LegacyAminoPubKey` struct correctly unmarshals from JSON
+* (server) [#10016](https://github.com/cosmos/cosmos-sdk/issues/10016) Fix marshaling of index-events into server config file.
+
+
+### State Machine Breaking
+>>>>>>> 3d3bc7c43 (fix: unmarshalling issue with multisig keys in master (#10061))
 
 * [\#9965](https://github.com/cosmos/cosmos-sdk/pull/9965) Fixed `simd version` command output to report the right release tag.
 

crypto/keys/multisig/amino.go

@@ -78,7 +78,9 @@ func (m *LegacyAminoPubKey) UnmarshalAminoJSON(tmPk tmMultisig) error {
 	// Instead of just doing `*m = *protoPk`, we prefer to modify in-place the
 	// existing Anys inside `m` (instead of allocating new Anys), as so not to
 	// break the `.compat` fields in the existing Anys.
+	m.PubKeys = make([]*types.Any, len(protoPk.PubKeys))
 	for i := range m.PubKeys {
+		m.PubKeys[i] = &types.Any{}
 		m.PubKeys[i].TypeUrl = protoPk.PubKeys[i].TypeUrl
 		m.PubKeys[i].Value = protoPk.PubKeys[i].Value
 	}

crypto/keys/multisig/multisig_test.go

@@ -428,6 +428,14 @@ func TestAminoUnmarshalJSON(t *testing.T) {
 	require.NoError(t, err)
 	lpk := pk.(*kmultisig.LegacyAminoPubKey)
 	require.Equal(t, uint32(3), lpk.Threshold)
+	require.Equal(t, 5, len(pk.(*kmultisig.LegacyAminoPubKey).PubKeys))
+
+	for _, key := range pk.(*kmultisig.LegacyAminoPubKey).PubKeys {
+		require.NotNil(t, key)
+		pk := secp256k1.PubKey{}
+		err := pk.Unmarshal(key.Value)
+		require.NoError(t, err)
+	}
 }
 
 func TestProtoMarshalJSON(t *testing.T) {