Header API returns incorrect block

[wemeetagain]

cayman@ruby:~/Code/lodestar$ curl localhost:9596/eth/v1/beacon/headers/812 | jq .
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   615  100   615    0     0  43928      0 --:--:-- --:--:-- --:--:-- 47307
{
  "data": {
    "root": "0xb21d4fffb0681d16752c50aaa81704e1b180bd1f17fb7fab15a2ff9cee5a292a",
    "canonical": true,
    "header": {
      "message": {
        "slot": "811",
        "proposer_index": "1",
        "parent_root": "0xff5c06266374093843aaad477e86d8d51cd3a0533c744b3a59d80b96aba0fba0",
        "state_root": "0x63d7884b32893d96faf77a6793cbc392d87ff37b2398b7c7fa3d7044caa1fb9e",
        "body_root": "0x327ba8b9134d0d4b7dfd5163c7688f653b56093e4261f03d277401bfd94d3a3a"
      },
      "signature": "0x979d73f00edcd57ee5e61141f23bf15c057bebc9cad8707abf7153c7803f126cbdb8ac3a596542e1cd6f14e55593a3120684784bb73b066502a4df7a3d71fbce6e073d476bd8457fc79d78fd6a900ca0abd110385d617c2578e1359d88515e48"
    }
  }
}
cayman@ruby:~/Code/lodestar$ curl localhost:9596/eth/v1/beacon/headers/812 | jq .
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   615  100   615    0     0   120k      0 --:--:-- --:--:-- --:--:--  120k
{
  "data": {
    "root": "0x2a5235fc949ef9662025c555a155d192903476c710782eb0a873f070b5110459",
    "canonical": true,
    "header": {
      "message": {
        "slot": "812",
        "proposer_index": "7",
        "parent_root": "0xb21d4fffb0681d16752c50aaa81704e1b180bd1f17fb7fab15a2ff9cee5a292a",
        "state_root": "0x75475d6d25b553fa52d0b523e0c7b31f16babd81082029b6a6046e9849184eb2",
        "body_root": "0x147c406a15ddc22e35cbc94cf25d2a5b882ca242312d136db649050c6a5face0"
      },
      "signature": "0x9679574101462448f72dc49e28c238b791d8ce11a882ca29f663f6ce5cf45af797cf681f1e91ef7d4667e25d14bf49a10875aef61e1da1541711736d2842b01a83dbd289b11da0adf728c549e3b45e7c9a01aef2a54eafdcbd0ecdb398272ec5"
    }
  }
}

[dapplion]

@wemeetagain Was 812 the head at the time you tested this? What had that case that make this error happen? Could you try again to see if it still happens?

[wemeetagain]

I believe 812 was around the head when I tested this.
I don't remember (or didn't actually investigate) what made the error happen.
But we haven't refactored our API code, so it probably is still is a problem.

[wemeetagain]

Easy to reproduce:

curl localhost:9596/eth/v1/beacon/headers/999999999999