Are they asking: "If we offer you this position and you like our offer, are you going to accept it?" If so, that does not seem unreasonable to me. Perhaps th

Are they asking: "If we offer you this position and you like our offer, are you going to accept it?" If so, that does not seem unreasonable to me. Perhaps they have been burned by tire kickers in the past who were only looking for a way to increase their current salary with a competitive offer with no intention of ever taking the position.