Infinite loop when sending POST to /ngsi-ld/v1/entities/{entityId}

[cfreyfh]

When sending a POST to the endpoint /ngsi-ld/v1/entities/{entityId} with the payload

{
    "id": "urn:ngsi-ld:Cell:CELL_001",
    "type": "Cell",
    "Name": {
        "type": "Property",
        "value": "CELL_001"
    },
    "Cycles": {
        "type": "Property",
        "value": {
            "1": {
                "param_001": "2025-08-19T15:45:56.8949999Z",
                "param_002": "2025-08-19T19:05:10.2239999Z",
                "param_003": "2025-08-19T15:45:56.8949999Z",
                "param_004": "2025-08-19T18:55:58.818Z",
                "param_005": "2025-08-19T18:55:58.8399999Z",
                "param_006": "2025-08-19T19:05:10.2239999Z",
                "param_007": "2025-08-19T19:35:10.272Z",
                "param_008": "2025-08-19T22:39:00.2839999Z",
                "param_009": "2025-08-25T12:45:07.9568556+00:00",
                "param_010": 2.799985,
                "param_011": 4.210985,
                "param_012": 4.25002,
                "param_013": 3.609208,
                "param_014": 3.691901,
                "param_015": 3.299766,
                "param_016": 11401.923,
                "param_017": 551.384,
                "param_018": 11953.329,
                "param_019": 11030.012,
                "param_020": -895910.972301,
                "param_021": 977166.257829,
                "param_022": 71.014822,
                "param_023": 69.683148,
                "param_024": -67.401981
            },
            "2": {
                "param_001": "2025-08-19T23:09:00.345Z",
                "param_002": "2025-08-20T02:18:26.2579998Z",
                "param_003": "2025-08-19T23:09:00.345Z",
                "param_004": "2025-08-20T02:09:25.5659999Z",
                "param_005": "2025-08-20T02:09:25.585Z",
                "param_006": "2025-08-20T02:18:26.2579998Z",
                "param_007": "2025-08-20T02:48:26.309Z",
                "param_008": "2025-08-20T05:51:51.75Z",
                "param_009": "2025-08-25T12:45:07.9573277+00:00",
                "param_010": 2.79999,
                "param_011": 4.222665,
                "param_012": 4.250023,
                "param_013": 3.180951,
                "param_014": 3.692412,
                "param_015": 3.299868,
                "param_016": 10825.221,
                "param_017": 540.673,
                "param_018": 11365.913,
                "param_019": 11005.441,
                "param_020": -893930.768132,
                "param_021": 924095.924991,
                "param_022": 67.459471,
                "param_023": 66.153347,
                "param_024": -67.251878
            },
            "3": {
                "param_001": "2025-08-20T06:21:51.789Z",
                "param_002": "2025-08-20T09:30:50.986Z",
                "param_003": "2025-08-20T06:21:51.789Z",
                "param_004": "2025-08-20T09:21:49.391Z",
                "param_005": "2025-08-20T09:21:49.414Z",
                "param_006": "2025-08-20T09:30:50.986Z",
                "param_007": "2025-08-20T10:00:51.0269999Z",
                "param_008": "2025-08-20T13:04:22.0759999Z",
                "param_009": "2025-08-25T12:45:07.9635101+00:00",
                "param_010": 2.799995,
                "param_011": 4.226446,
                "param_012": 4.250023,
                "param_013": 3.202491,
                "param_014": 3.691962,
                "param_015": 3.299752,
                "param_016": 10797.602,
                "param_017": 541.572,
                "param_018": 11339.197,
                "param_019": 11011.049,
                "param_020": -894362.326404,
                "param_021": 922026.056368,
                "param_022": 67.293808,
                "param_023": 65.98443,
                "param_024": -67.286135
            }
        }
    },
    "MeasurementRef": {
        "type": "Property",
        "value": [
            {
                "object": "urn:ngsi-ld:TestData:ANON_TEST_001",
                "StartTime": "2025-08-19T15:33:23.3660000Z",
                "EndTime": "2025-12-09T07:12:39.4200000Z",
                "additionalInformations": {}
            }
        ]
    },
    "LastProcessingTime": {
        "type": "Property",
        "value": "2025-12-01T13:54:57.0000000"
    }
}

I do not receive a 405 Method Not Allowed response; instead, the broker enters an infinite loop with the following status messages:

Refused wrong status code (2099257376). HTTP requires three digits status code!
T: 08:13:00: mhdReply.cpp[78]: mhdReply: Response Code:  2099257376
T: 08:13:00: mhdReply.cpp[77]: mhdReply: Response Body: 'None'
T: 08:13:00: mhdReply.cpp[78]: mhdReply: Response Code:  2099257376
Refused wrong status code (2099257376). HTTP requires three digits status code!
T: 08:13:00: mhdReply.cpp[77]: mhdReply: Response Body: 'None'

I will write a functional test and investigate further.