Having had the car off the road for so long, it's really annoying to now have this slight problem, but I'm sure that it will resolve itself given time and patience. These things do happen, and particularly when you have a computerised system controlling the car.
A little later. I drove into Sainsbury's a little later, and the doors were working perfectly. Whatever was wrong has apparently resolved itself. So hopefully that is the end of that problem. I was thinking that, after all that we've paid out for car repairs, we aren't going to surely have to spend more on having these doors repaired.