Question about port-forward auto-generated WAN rule

[vtmike]

Hello-

I have not touched my port forwarding rules in some time.  I was making a slight adjustment, and I noticed something that looked off, and wanted to ask this community --

I have rules that forward from high ports to internal services hosted on port 443, see screenshot.  I saved using the auto-rule generation for the filter rules.

On the firewall rules for my WAN interface, the generated auto-rule shows the internal port (443) and not the external port I defined in the port forwarding rule.  See screenshot. 

Is this correct?  I expected I would see the external port listed in the WAN firewall rule.

Note: the services are working fine.  They are available outside my network on the external port defined in the port forwarding rule.

Thanks.