In https://github.com/deepmap/oapi-codegen/blob/5a337911b060aad7130b05ad1819cfd3b73884f4/examples/petstore-expanded/gin/petstore.go#L26-L28, and other cases we're getting the Middleware

	// Clear out the servers array in the swagger spec, that skips validating
	// that server names match. We don't know how this thing will be run.
	swagger.Servers = nil

I recommend we log a warning if we see that Servers != nil.

This won't break anyone's builds or expectations if they're needing it, but will make it clear that this could be a problem.

It's a problem I've hit several times and so have others I've worked with, so we should try and preemptively alert folks!