Auction exists, but `/names/auctions/{id}/claims` fails with "error": "not found: <name>.chain"

[davidyuk]

Here is an auction

// https://mainnet.aeternity.io/mdw/v3/names/auctions/4.chain
{
  "name": "4.chain",
  "name_fee": 570288700000000000000,
  "auction_end": 978322,
  "last_bid": {
    "block_hash": "mh_D5HX2mSxPjshSjQRvM2gVyD5jqaCPk5mwC8ZXg4gDb5XBZRpt",
    "block_height": 977935,
    "encoded_tx": "tx_+JALAfhCuEACZB8Xt2lGvnca8nEgb/eZicK/T1LU/D5DnQJWheuIO0lmcFB+FBp5OF5KY8jLrtgl5L/6WJNMnawJktx2KqAGuEj4RiACoQHzCHVcvWJ+SDlEUjSk5cLvF5dNym/Z7CeOnopbd3zIN4IDa4c0LmNoYWluAIoFt6xFU9564AAAhg7zvFwwAIMO7BJSLeL/",
    "hash": "th_2pWibP1Q5fnA8mk5k9eg3DjZ4M2hvANhtESMifr6aMEk3e4HXz",
    "micro_index": 6,
    "micro_time": 1721654826372,
    "signatures": [
      "sg_K9LhF3LtXAmE2tWaX42zQx657LKLDUU66qbhsWnzyZ3fsYsK7APJLobJiJVj8pnt67WSmU6cq3CdmkhwdpkzTNRC7zhG"
    ],
    "tx": {
      "account_id": "ak_2r2xGN1v8QKQDNk35WBKyH6Wxz1WP3pxhBNrLgeaK9aTybjvDL",
      "fee": 16440000000000,
      "name": "4.chain",
      "name_fee": 27000000000000000000000,
      "name_id": "nm_2E61zsDYB4aLf2A8fYHVDwmWFJLicBEq1VzaPgLLJg1jCqHVSu",
      "name_salt": 0,
      "nonce": 875,
      "ttl": 1158322,
      "type": "NameClaimTx",
      "version": 2
    }
  },
  "approximate_expire_time": 1721726396608,
  "activation_time": 1721654826372
}

I'm trying to get its claims via /names/auctions/{id}/claims as defined in https://mainnet.aeternity.io/mdw/v3/api, but it fails with

// https://mainnet.aeternity.io/mdw/v3/names/auctions/4.chain/claims
{
  "error": "not found: 4.chain"
}

The auction is not over, current height is less than auction_end

// https://mainnet.aeternity.io/v3/key-blocks/current/height
{
  "height": 978315
}

From the other side, /names/{id}/claims looks working:

// https://mainnet.aeternity.io/mdw/v3/names/4.chain/claims
{
  "data": [
    {
      "height": 178347,
      "block_hash": "mh_2Gt9K2NLUQweunRA63cQrGj6crufVay2emTWExbkHQZap76bmU",
      "tx": {
        "account_id": "ak_iNokaxUWd4RXdUpH4RcTbaEh7DPvzzm5FZ3uQ3ydHWDoY6RbS",
        "fee": 16480000000000,
        "name": "4.chain",
        "name_fee": 570288700000000000000,
        "name_salt": 5506623829534945,
        "nonce": 201,
        "ttl": 0
      },
      "source_tx_hash": "th_xtuD7XngrTfAuzEXGsz55QBzvTQNRxMxyLbdnaRFcnCpmuvqa",
      "source_tx_type": "NameClaimTx",
      "active_from": 208107,
      "internal_source": false
    }
  ],
  "next": null,
  "prev": null
}