Portals don't render fog correctly

[robochase6000]

I was trying to get this to work with URP, and I was having a lot of trouble getting the fog working on the portals. I figured I'd backtrack and load up the example scenes with the built in renderer, and it's the same problem.

Here you can see i've gone pretty aggressive on the fog here to better illustrate the point.

I think this is more a unity thing, than a problem with this project, but just putting the problem here in case anyone has any ideas. Thanks!