v1.0.0+ split keys failure

[b0a7]

🐞 Bug Report

Description

split keys operation failed on v1.0.0 and v1.0.1 with the error
$ docker run --rm -v $(pwd):/opt/charon obolnetwork/charon:${CHARON_VERSION} create cluster --name="${CLUSTER_NAME}" --network="${NETWORK}" --withdrawal-addresses="${WITHDRAWAL_ADDRESS}" --fee-recipient-addresses="${FEE_RECIPIENT_ADDRESS}" --split-existing-keys --split-keys-dir=/opt/charon/split_keys --threshold ${THRESHOLD} --nodes ${NODES}
16:24:49.213 ERRO cmd Fatal error: invalid deposit data signature: signature not verified
tbls/herumi.go:297 .Verify
tbls/tbls.go:122 .Verify
eth2util/deposit/deposit.go:97 .MarshalDepositData
eth2util/deposit/deposit.go:300 .WriteDepositDataFile
eth2util/deposit/deposit.go:273 .WriteClusterDepositDataFiles
cmd/createcluster.go:253 .runCreateCluster
cmd/createcluster.go:94 .func1
cmd/cmd.go:91 .func1
main.go:19 .main

Has this worked before in a previous version?

Yes, the previous version in which this bug was not present was: CHARON_VERSION=v0.19.2

$ docker run --rm -v $(pwd):/opt/charon obolnetwork/charon:${CHARON_VERSION} create cluster --name="${CLUSTER_NAME}" --network="${NETWORK}" --withdrawal-addresses="${WITHDRAWAL_ADDRESS}" --fee-recipient-addresses="${FEE_RECIPIENT_ADDRESS}" --split-existing-keys --split-keys-dir=/opt/charon/split_keys --threshold ${THRESHOLD} --nodes ${NODES}
Unable to find image 'obolnetwork/charon:v0.19.2' locally
v0.19.2: Pulling from obolnetwork/charon
5d0aeceef7ee: Already exists
3cb52c1feafb: Pull complete
219f38bef2a1: Pull complete
e344aae7ae63: Pull complete
7da51ba8602e: Pull complete
e1697e312eb6: Pull complete
4f4fb700ef54: Pull complete
6200d4745da4: Pull complete
Digest: sha256:3977f4e46926d40342dd5d3d37a76340060494410808c45594e6763a4972fbd6
Status: Downloaded newer image for obolnetwork/charon:v0.19.2

***************** WARNING: Splitting keys **********************
Please make sure any existing validator has been shut down for
at least 2 finalised epochs before starting the charon cluster,
otherwise slashing could occur.

---

Created charon cluster:
--split-existing-keys=true

/opt/charon/
├─ node[0-2]/ Directory for each node
│ ├─ charon-enr-private-key Charon networking private key for node authentication
│ ├─ cluster-lock.json Cluster lock defines the cluster lock file which is signed by all nodes
│ ├─ deposit-data.json Deposit data file is used to activate a Distributed Validator on DV Launchpad
│ ├─ validator_keys Validator keystores and password
│ │ ├─ keystore-.json Validator private share key for duty signing
│ │ ├─ keystore-.txt Keystore password files for keystore-*.json

🔬 Minimal Reproduction

🔥 Error

🌍 Your Environment

Operating System:

What version of Charon are you running? (Which release)

Anything else relevant (validator index / public key)?

[gsora]

@pinebit have we seen this already?