bug when listing BLS keys

[ladidan]

reproducibly receiving this error when trying to list BLS keys via client CLI:

docker exec -w /home secure_signer_container /bin/bash -c "./client --list"

• Connected to Secure-Signer on port 9001
  Error: list_eth_keys_route received 500 Internal Server Error response: Err(Failed to parse to T

Caused by:
0: error decoding response body: missing field data at line 1 column 117
1: missing field data at line 1 column 117)

though BLS have been successfully generated and are stored within the enclave

curl http://localhost:9001/eth/v1/keystores

{"data":[{"pubkey":"0x8401...72fc2c"},{"pubkey":"0x973d7b...637257e"},{"pubkey":"0xa51...2fe4"}]}