`iothub@2022-04-30-preview`: `IotHubResource_CreateOrUpdate` succeeded but `IotHubResource_Get` returned with 404

When calling `IotHubResource_CreateOrUpdate` to update `disableLocalAuth` for an existing IotHub, it returned with
```
{"status":"Succeeded"}
```
but then a call on `IotHubResource_Get` with the same IotHub was returned with
```
{"error":{"code":"ResourceNotFound","message":"The Resource 'Microsoft.Devices/IotHubs/acctestIoTHub-231225062135493926' under resource group 'acctestRG-iothub-231225062135493926' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix"}}
```

The update request Id: 6e753721-de0d-44c4-866b-2719ca08a28a
The get request Id: 1dcd4f28-feae-44ba-bedb-ea0c7804e1b0

Start by reviewing the Azure IoT Hub 2022-04-30-preview CreateOrUpdate and Get operations, using the supplied update and get request IDs to investigate the reported sequence. Done means determining why a successful update is followed by ResourceNotFound and addressing the discrepancy in the API specification; no file or test is named in the issue.

Written by the indexing model from the issue text.