Just a ding to the left wingtip and aileron, judging by how quickly Spitfire G-CTIX was back in the air after a much more damaging undercarriage collapse earlier this year, I imagine it'll be back on the flight line tout suite...
The three (soon to be four) Spitfire two seaters at Biggin are substantially original airframes as far as I know although all have been repaired after landing accidents at some point in their history.