Under normal circumstances I would have gone to this as it isn’t far from where I live and I have a few Merthyr supporting mates.
One of them was at the game and said just before full time a group of blokes, presumably Farnborough supporters, started goading and throwing objects at the Merthyr supporters that had congregated behind the one goal. Think this turned into some altercations at full time by the tunnels where some players and coaches were getting sucked into it. Although he said he wouldn’t describe it as a pitch invasion.
Then it kicked off again in the car park as the away supporters were heading to the coaches with bricks and all sorts being used. He did say there was something about it that almost felt a little premeditated. He was texting me as it was happening and said there were pools of blood about the place and he was worried at the time that someone may have gotten stabbed.
Weren’t aware of any particular bad blood between both sets of fans. I’ve been there twice before to see them play and both experiences were as you would expect at that level. Very unusual scenes all round.