Sorry guys,I had presumed that the end result had been because of an earlier problem,leading to some kind of f/landing,so it looks even more bizarre to end up as it did...
Unfortunately,a lot of pilots seem to extend the downwind leg ,and dragging in on final from a couple of miles,instead of a glide approach and short final.Extending upwind is easier for spacing with multiple a/c in the circuit,but there will always be jokers who join `long final,just in binocular range,and screw up the pattern...