bug when using custom post page in 2.5 RC1

Hello.

I just installed 2.5 RC1 in order to tested and imediately noticed a bug/change.

I’m using the following link structure:

– Home page: site.com (Home)

– Posts page: site.com/blog (Blog)

– Category base: /blog/category

– Permalinks: /blog/%postname%

I’m doing this because I want some static pages to appear under site.com/pagename, hence I’m separating the regular posts from them.

In 2.3 this worked fine, i would get post pages under site.com/blog/page/2 and subpages of the Blog page would show up, like site.com/blog/archives.

In 2.5 RC1 neither show up under /blog, both paged navigation and subpages of the Blog page appear under the root, like site.com/page/2 and site.com/archives although the custom Posts Page is set as Blog.

Is this a change or a bug?

Thanks for your help.