If you just want a in that patched image, I can generate one.
qemu-system-x86_64 -drive file=fgtvm64kvmv721fbuild1254fortinetoutkvmqcow2,if=virtio -m 4096 -net user,hostfwd=tcp::8443-:443 -net nic fgtvm64kvmv721fbuild1254fortinetoutkvmqcow2 patched