No, No, I know that the foundations are suppose to have that shape, because that's what the building's shape is if you look directly down from the top.
I'm talking about that edge on the southwest corner of the concrete core. As you can see from pictures and webcam images, the southwest corner makes the entire foundation walls not-symetrical, like they are shown on wtc.com floor/ground plans.
I drew a picture to demonstate what I'm trying to say:
As you can see, I circled the area where the foundation walls are bent.