Myself and a couple of friends fly in the UK with three seperate clubs. The common rule of all three are that if you haven't flown in the previous 28 days (or haven't hired from that club before) you need a "check ride" with an instructor (doesn't need to be CFI). My understanding is that this is linked to their insurance.
Whether that means a quick circuit, a few refresher exercises such as PFLs or a longer session is entirely down to how you feel when you get up there, and how the instructor feels you perform. Certainly approached as "instruction" rather than "test" in my experience.
I wouldn't worry about it, why not phone and ask how much time you should put aside for this (eg book a session in it's own right, or allow a quarter of an hour at the start of your first SFH session assuming all goes well)?
RC