First message (role object)

--------------------------------------------------------

{
    "roleIdentifier": "Former Employee",
    "affiliation": "",
    "managerIdentifier": "",
    "organization": "",
    "department": "",
    "title": "",
    "validFrom": "2013-08-10",
    "validThrough": "2022-10-06",
    "telephoneNumbers": [],
    "adhoc": []
}

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second message (causes database error)

{
    "roleIdentifier": "Former Employee",
    "affiliation": "",
    "managerIdentifier": "",
    "organization": "",
    "department": "",
    "title": "",
    "validFrom": "2022-10-12",
    "validThrough": null,
    "telephoneNumbers": [],
    "adhoc": []
}