It looks like both the solenoid and the driver use the same 28V supply.
If you short the supply to ground, it won't hurt the circuit, it will hurt the supply.
Then post the schematic of the solenoid driver firing circuit so we can see what you are worried about. If it is just the bare collector of an NPN transistor then there isn't a problem if the solenoid's positive supply shorts to ground, except it will be kinda hard on that supply. :lol: