Unable to change smart group's site

[cybertunnel]

When changing a JSS::ComputerGroup site, if it is smart it throws a 409 Conflict through the API since it doesn't clear our the members section of the object.

I will look into this and submit a PR referencing this issue.

[cybertunnel]

Seems like the error occurs during a "refresh", the object's site does still get updated

[cybertunnel]

The error is in relation to how the API handles the payload. It wants the members to be empty so it can generate the member list.