REST API: Order of Events

I am trying to change an Inventory ID on an existing SO Line via REST API. It seems the SOLine_InventoryID_FieldUpdated logic is interfering with this. 

Setup:

1. Create an SO with an inventory item (mine is 011705)
2. Have at least 2 warehouses available
3. Have another inventory item (mine is 011706)

In Postman, I PUT to /entity/Default/23.200.001/SalesOrder?$filter=OrderNbr eq '180214'&$expand=Details&$select=OrderNbr,Details/InventoryID,Details/WarehouseID

{
    "OrderType": {
        "value": "SO"
    },
    "OrderNbr": {
        "value": "180214"
    },
    "Details": [
        {
            "id":"fb135987-eeea-ef11-912e-00d86198c979",
            "WarehouseID":{
                "value":"GREEN"
            },
            "InventoryID": {
                "value": "011706"
            },
        }
    ]
}

If the new part has a default warehouse, this request will go through, but the default warehouse will be used instead of the warehouse I sent:

{
    "id": "68fc2b59-eeea-ef11-912e-00d86198c979",
    "rowNumber": 1,
    "note": {
        "value": ""
    },
    "Details": [
        {
            "id": "fb135987-eeea-ef11-912e-00d86198c979",
            "rowNumber": 1,
            "note": null,
            "InventoryID": {
                "value": "011706"
            },
            "WarehouseID": {
                "value": "PBNW"
            },
            "custom": {},
            "_links": {
                "files:put": "/Acu2024R2/entity/Default/23.200.001/files/PX.Objects.SO.SOOrderEntry/Transactions/fb135987-eeea-ef11-912e-00d86198c979/{filename}"
            }
        }
    ],
    "OrderNbr": {
        "value": "180214"
    },
    "OrderType": {
        "value": "SO"
    },
    "custom": {},
    "_links": {
        "self": "/Acu2024R2/entity/Default/23.200.001/SalesOrder/68fc2b59-eeea-ef11-912e-00d86198c979",
        "files:put": "/Acu2024R2/entity/Default/23.200.001/files/PX.Objects.SO.SOOrderEntry/Document/68fc2b59-eeea-ef11-912e-00d86198c979/{filename}"
    }
}

If the new part does not have a default warehouse, the request fails with “’Warehouse’ cannot be empty”:

{
    "id": "68fc2b59-eeea-ef11-912e-00d86198c979",
    "rowNumber": 1,
    "note": {
        "value": ""
    },
    "error": "Updating  'Sales Order Line' record raised at least one error. Please review the errors.",
    "Details": [
        {
            "id": "fb135987-eeea-ef11-912e-00d86198c979",
            "rowNumber": 1,
            "note": {
                "value": ""
            },
            "InventoryID": {
                "value": "011706"
            },
            "WarehouseID": {
                "error": "'Warehouse' cannot be empty."
            },
            "custom": {},
            "_links": {
                "files:put": "/Acu2024R2/entity/Default/23.200.001/files/PX.Objects.SO.SOOrderEntry/Transactions/fb135987-eeea-ef11-912e-00d86198c979/{filename}"
            }
        }
    ],
    "OrderNbr": {
        "value": "180214"
    },
    "OrderType": {
        "value": "SO"
    },
    "custom": {},
    "_links": {
        "self": "/Acu2024R2/entity/Default/23.200.001/SalesOrder/68fc2b59-eeea-ef11-912e-00d86198c979",
        "files:put": "/Acu2024R2/entity/Default/23.200.001/files/PX.Objects.SO.SOOrderEntry/Document/68fc2b59-eeea-ef11-912e-00d86198c979/{filename}"
    }
}

I also tried sending the same line twice in the same request, which has helped with other situations, but it did not affect the behavior here. It looks like changing the inventory ID triggers the normal field updating logic AFTER the warehouse has already been set. Is there any way I can affect the order those fields are processed in when submitted via API so the warehouse is set after the defaults are filled in?

Thank you for reading.