Xcode 5 doesn't let me export unsigned cocoa application

Xcode 5 doesn't let me export unsigned cocoa application

When I try to export a cocoa application in XCode 5 GM (which probably
isn't anymore under NDA, if it is it will be off tomorrow) doesn't give me
the option to export an unsigned application as it did in xcode 4.6 < When
I pick up an archive and select export as application as shown here:

In the next screen I have no chances to save it as an unsigned
application, as I did before.
Xcode 5:

Xcode 4:

Any Idea on why? is this a bug?
Thanks