WITH_EDITOR and WITH_SERVER_CODE always 1

Hey,

I am playing with some server/client stuff and I am encountering that WITH_EDITOR and WITH_SERVER_CODE is always defined 1, for each BuildTarget I select. Even the Shipping builds have this behavior. Already regenerated the projects file. Is this a normal behavior? Or do I understand the semantic of the defined values wrong?

If this is relevant: I am using VS17