Calling PartlyRefund() with an invalid order id results in an ObjectDisposedException.

[rue-vmom]

Looks like when an invalid order id is passed in, the services return a 404 with a JSON body of:

{"error":{"message":"An order with id: '123456789' doesn't exist in the system"}}

I don't understand the purpose of this line, but during JSON deserialization, it throws a cast exception here: https://github.com/Riskified/sdk_net/blob/master/Riskified.SDK/Utils/HttpUtils.cs#L201

Object of type 'System.String' cannot be converted to type 'Riskified.SDK.Utils.HttpUtils+ErrorMessage'.

The JSON parsing code closes the response stream here: https://github.com/Riskified/sdk_net/blob/master/Riskified.SDK/Utils/HttpUtils.cs#L186

The exception bubbles up to: https://github.com/Riskified/sdk_net/blob/master/Riskified.SDK/Utils/HttpUtils.cs#L115
which throws the ObjectDisposedException exposed to the client.

I think the issue is that when the response was closed earlier it was also disposed of.