[BUG] PowerBI Embedded API always returns "Gen2" for the mode property even if the mode property is set to "Gen1" in the request payload

[neil-yechenwei]

API Spec link

https://github.com/Azure/azure-rest-api-specs/blob/main/specification/powerbidedicated/resource-manager/Microsoft.PowerBIdedicated/stable/2021-01-01/powerbidedicated.json

API Spec version

2021-01-01

Describe the bug

PowerBI Embedded API always returns "Gen2" for the mode property even if the mode property is set to "Gen1" in the request payload.

Request Payload:

PUT https://management.azure.com/subscriptions/xx-xx-xx-xx-xx/resourceGroups/acctestRG-powerbi-240717125400411087/providers/Microsoft.PowerBIDedicated/capacities/acctestpowerbi240717125400411087

{
    "location": "westeurope",
    "properties": {
        "administration": {
            "members": [
                "xx-xxx-xxx-xxx"
            ]
        },
        "mode": "Gen1"
    },
    "sku": {
        "name": "A1"
    },
    "tags": {}
}

Expected behavior

PowerBI Embedded API should return "Gen1" for the mode property when the mode property is set to "Gen1" in the request payload.

Actual behavior

PowerBI Embedded API should return "Gen2" for the mode property when the mode property is set to "Gen1" in the request payload.

Reproduction Steps

1. Create Resource Group
2. Create PowerBI Embedded with mode = "Gen1"

Environment

PROD

[v-jiaodi]

@LinglingTong Please help take a look, thanks.