ospf default route selection

Hello network forum.

From my understanding of the RFC, OSPF route selection works like this. I > I OA > E1 > E2 >N1 >N2

Pretty basic.

I have an OSPF area 0 connected to a NSSA. Backbone area is getting a default E2 route from an edge router connected to the internet. The NSSA is setting a default N2 route via its connection to the Internet.

My ABR - It selects the N2 default over the E2 default when i sent the default route in from the ASBR within the nssa.

Thoughts on why?

I was expecting that area 0 wil use its default route and the NSSA will have the default within its area but would use the area 0 default to go everywhere.