Rosetta account/balance API does not return the correct balance

[crustywhale]

See a couple examples below, and compare to the explorer on testnet.

curl --location 'https://<testnet>/rosetta/v1/account/balance?network_identifier=testnet&blockchain=stacks' --header 'Content-Type: application/json' --data '{
  "account_identifier": {
    "address": "ST2TFVBMRPS5SSNP98DQKQ5JNB2B6NZM91C4K3P7B"
  }
}'
Response:
{
    "block_identifier": {
        "index": 118712,
        "hash": "0xd548e71172a56ac8833b66b9c6c48eb2f298292329aacb9fddf751bd9e64ca84"
    },
    "balances": [
        {
            "value": "-10716000",
            "currency": {
                "symbol": "STX",
                "decimals": 6
            }
        }
    ],
    "metadata": {
        "sequence_number": 36252
    }
}

curl --location 'https://<testnet>/rosetta/v1/account/balance?network_identifier=testnet&blockchain=stacks' --header 'Content-Type: application/json' --data '{
  "account_identifier": {
    "address": "ST119XW0ZKZFM2QQNDA2EJTTMQN87N08EC3J9KGKV"
  }
}'

Response:

{
    "block_identifier": {
        "index": 118714,
        "hash": "0x1966821be68325030ec9a39632d2fbf2a9e0c6f517c01d6b9cdf23fa84a445d9"
    },
    "balances": [
        {
            "value": "0",
            "currency": {
                "symbol": "STX",
                "decimals": 6
            }
        }
    ],
    "metadata": {
        "sequence_number": 0
    }
}