Fastpath L3 to FortiSwitch?

Does anyone know if it is possible to forward packets between VLANs locally on a FortiSwitch when in FortiLink mode or does traffic passing between subnets always have to be punted up to the FortiGate and back again? Seems like it would be a pretty major win if Fortinet could implement local L3 forwarding on a FortiSwitch where the FortiGate policy does not require any deep inspection for UTM/NGFW features. Would fit somewhere between a regular L3 switch and an ISFW. Alternatively, punt the first few packets of a session to the FortiGate and then 'fastpath' to the switch silicon once all checks have been made.