I don't see why that's a problem; it doesn't matter what the client does with it, as long as it can't be written back to the server. There's no way it could be written back to the server if the server doesn't have a field for it.
I don't see why that's a problem; it doesn't matter what the client does with it, as long as it can't be written back to the server. There's no way it could be written back to the server if the server doesn't have a field for it.